What Is Causing A Clean Boot Sector In Windows 7 And How To Fix It


bootrec / FixBoot writes a new boot sector to the system partition. If your system is Windows 7, FixBoot will write the boot sector compatible with Windows 7, and so on. bootrec / ScanOs scans hard drives for installation. ScanOs also prints settings that are not currently included in the BCD.



You can use system recovery tools to solve most computer problems. However, there are times when you need to fix these problems manually, for example: B. if your Windows computer won’t start. In these cases, you can use a tool called Bootrec.exe. It can help you diagnose and fix problems such as master boot record (MBR), boot sector, or Boot Configuration Data (BCD) store. This is how it works in all modern versions of Windows:

NOTE. This guide applies to Windows 10, Windows 7, and Windows 8.1.

What Is MBR


MBR (short for “Master Boot Record”) is the boot sector (hard disk area) that contains information about the partitions on the hard disk and acts as a boot loader for the operating system you are using ™.

The Master Boot Record is created in the first partition that you created when you first installed Windows. These are the first 512 bytes of your hard drive.

clean boot sector windows 7

If the MBR is damaged, you will not be able to start Windows. All versions of Windows – Windows XP, Vista, 7 or 8 – use the MBR. If he’s damagedevery day, you will not be able to run.

It can be corrupted by certain viruses that target the MBR to replace it with their own code, or in cases where you duplicate a Linux distribution (see Error: no section. Article on Grub Rescue).

How To Fix MBR

The main method for restoring MBR is using the command line and executing the bootrec.exe command. In versions of Windows prior to Windows 8 and 10, you usually access the command line using recovery media such as a DVD or USB drive. It still works on Windows 10 and we will discuss this method at the end of this guide. However, recent versions of Windows provide an easier way to run recovery commands without external media.

When you start your Windows 10 PC for the first time, it should recognize the problem and go into automatic recovery mode. In this case, the message “Preparing for automatic recovery” appears under the blue Windows logo.

If not, but you see a blue Windows logo, turn off the computer using the hard reset / power reset buttonniya. Turn your computer on and off until it automatically recovers your computer. It only takes a few reboots.

When the auto recovery mode is ready, the auto recovery screen appears. Here select Advanced Options.

On the next screen, click Troubleshoot again, then click Advanced options.

You will see a screen with six options. If you want, you can choose Startup Repair before entering Command Prompt and Bootrec. Startup Repair is an automated program that tries to fix problems on your computer’s hard drive without user intervention.

This is a good utility that can be used to solve your problem, but Startup Repair takes much longer than just running Bootrec.

Click the command prompt tile to use the Bootrec parameter. This may cause your computer to restart and prompt you to log in with a password. If this happens, do it.

After the command appears withAll you have to do is type the following and then press Enter:

bootrec.exe / fixmbr

Notice the space between “exe” and “/ fixmbr”. It is important to include this space for the command to execute correctly. The first part tells the PC to run Bootrec, and the / fixmbr parameter tells Bootrec what to restore.

If everything went well, you should see the message: “The operation completed successfully.” When you see, you can restart your computer.

If you’re trying to repair ransomware or any other malware, you’ll need to boot into Safe Mode and then run your anti-malware software. For more information on these steps, see our previous guides on how to remove malware from Windows PCs and get into Safe Mode in Windows 10.

Bootrec From The System Recovery Disc

If you are using an older version of Windows or the recovery options do not start on your Windows 10 PC, you will need to use a recovery drive to repair the MBR. First comeInsert the recovery media into your PC. This is a version of the Windows installation discs you created or purchased.

By creating a recovery drive for Windows, you can rest assured in the worst case scenario.

Then start your system. If you are using a USB stick, your system BIOS must be configured to boot from USB before you can access the internal drives. If you misconfigured the BIOS, the system recovery disc is not useful. In addition, the way to enter BIOS (and its settings) is not universal. Lincoln Spector provides a guide on how to configure BIOS to boot from USB.

After starting the recovery disc, you will be prompted to select a keyboard layout in your language – in this case, English (United States). You will then be taken to the troubleshooting screen we saw earlier.

At this point, you can go to the command line described earlier and run Bootrec.

If you are using Windows 7, you will need to follow a few other steps after entering recovery mode. After selecting the input method, select “InRestore Computer ”, and then specify the name of the operating system. Then click Next> System Recovery Options> Command Prompt and run Bootrec with the same bootrec.exe / fixmbr file as above.



Where is Bootrec located Windows 7?

These. WIM files can be mounted using DISM or viewed using 7-Zip. As soon as one of the two “boot. Wim ”is loaded or opened, BootRec.exe is located in the subfolder“ Windows System32 ”.

How do I repair Windows 7 without a disk?

Recovery without installation CD / DVD
  1. Turn on your computer.
  2. Hold down the F8 key.
  3. On the Advanced Boot Options screen, select Safe Mode with Command Prompt.
  4. Press the Enter key.
  5. Log in as administrator.
  6. When the command prompt appears, enter this command: rstrui.exe.
  7. Press the Enter key.

How do I fix the Master Boot Record in Windows 7?

  1. Boot from the original installation DVD (or USB recovery drive).
  2. On the welcome screen, click Repair your computer.
  3. Select Troubleshoot.
  4. Select Command Prompt.
  5. When loading the command line, enter the following commands: bootrec / FixMbr bootrec / FixBoot bootrec / ScanOs bootrec / RebuildBcd.





Best Way To Fix XP Install Unmountable Boot Disk


If you have installed a removable XP boot disk on your system, this guide may help you.

  1. To fix this problem, start the Recovery Console.
  2. In the recovery console, enter chkdsk / p to find out if the drive is faulty or marked as faulty.
  3. If no errors are found on the hard drive after this check, restart your computer.

What is causing the disabling boot volume in Windows 10 and how to fix it. A “boot volume” is a partition on your hard drive that stores boot files and the Windows system. If you see the “Unmountable Boot Volume” error, you cannot access Windows and are stuck in a blue screen (BSoD) error.






Reasons For This Error

A blue screen of death with an UNMOUNTABLE BOOT VOLUME error indicates that Windows was unable to mount the boot filesystem 1 to read / load from it Required dependencies.

xp install unmountable boot volume

Although Windows based on a microkernel-like architecture can dynamically load dependencies and components, there is a fundamental subset of dependencies that must be activated during the boot process, otherwise Windows will not start even after calling the kernel.

In recent versions of Windows, and especially after the kernel and driver restructuring that took place during the development of Windows Vista, this list of components has been phased out to include only the most basic I / O (and mostly generic) Driver 2 in addition to controllers for the hard disk driver.

If Windows cannot identify and connect to the hard drive controller (whether it is embedded in the motherboard or as an integrated PCI-E card) or if the hard drive controller has been inserted string successfully, Windows will delete the volume but cannot read. During boot, for various reasons, there may be a BSOD with an UNMOUNTABLE BOOT VOLUME error.

We know that one or more of the following causes this error:

Reason 1. Bad / notCompatible hard disk controller drivers

As explained above, the Windows kernel cannot read and load basic dependencies from the hard drive unless Windows can identify and communicate with the hard drive controller responsible for the drive on which the partition is located. system and a blue screen appears.

A common cause that is often the cause of this scenario is uninstallation or inability to update / update hard disk controller drivers.

For example, if Intel or LSI disk management drivers are uninstalled, corrupted, uninstalled, or incorrectly updated and Windows does not yet support the specific hard disk controller in use, the hard disk cannot communicate with the hard disk adapter to read the required data, resulting in a blue screen of death UNMUNTABLE DOWNLOAD VOLUME.

Reason 2: trying to boot Windows from the wrong partition

Another scenario where Windows is unable to load its core drivers and other base dependencies is when Windows has the required drivers To interact with the hard disk controller, but receives a boot request from the wrong partition (i.e. not from the partition where it is actually installed). When the boot loader (NTLDR on Windows XP or BOOTMGR on Windows Vista and Windows 7) starts to load the operating system based on the 3 configuration file, it is passed to the kernel (in the environment block) to get information about where to load the operating system from. system.

If the configuration memory (BOOT.INI / BCD) is not installed correctly or no longer points to the correct partition, ntoskrnl Windows cannot boot from the specified partition, and a BSoD UNMOUNTABLE BOOT VOLUME error may occur.

Reason 3: Windows partition was resized or


Similar to a misconfigured BCD or BOOT.INI that instructs the Windows kernel to load the operating system from the wrong partition, the UNMOUNTABLE BOOT VOLUME error can also occur if the Windows partition ID is changed, but the startup configuration file retains outdated information.

NTLDR and BOOTMGR have several methods to uniquely identify (or attempt to) uniquely identify a partition, someThe second of which are based on a combination of disk number and partition offset (how far from the beginning of the disk) or partition number (how many partitions are physically located) in a sequential hard disk layout or MBR partition table).

If the Windows partition is moved, the partition is added or removed before the Windows partition is on the hard drive, or if the order of the hard drives is changed, the BCD or BOOT.INI links are the Windows partition. may no longer be correct and the kernel may no longer be. UNMOUNTABLE BOOT VOLUME blue screen appears when trying to boot Windows from the wrong partition.

Reason 4: SATA-AHCI / IDE / RAID mode changed or reconfigured

Similar to the first situation described above, where the device drivers required to communicate with the Windows partition have been removed or incorrectly replaced, the drivers configured by Windows can be loaded and used from the beginning of the installation procedure. the launch is no longer correct, although the underlying hardware has not changed. Most SATA controllers (integrated Intel ICH ACH, Marvell, JMicron, nVidia and others) provide BIOS configurationTo live the hard disk controller in one of three modes: IDE, AHCI or RAID.

  • IDE is the most basic mode that treats the SATA controller in the same way as the old IDE ATA controllers: the controller itself contains almost no read / write logic and just serves as the most ascetic bridge, just as a proxy for transferring data to and from disks …
  • AHCI was a new communication standard pioneered in home PCs for hard drives connected to SATA controllers in newer operating systems. The hard disk controller contained important logic for the reading and writing process. Instead of a Windows device, the driver dictates every movement of the read / write heads and searches on the hard drive. Controllers in AHCI mode act as a kind of “labels” for Windows, accept higher-level (more abstract) read and write tasks, and then use their own logic to process commands as efficiently as possible (to enable hardware caching, read order optimization / recordings (known as NCQ) to minimize disc searches and reduce latency, ande other optimizations.
  • Newer SATA controllers have a RAID mode in which mostly software RAID is used to configure hard drives as RAID 0 (“stripes”) for performance, and RAID 1 (“mirrors”) for data becomes redundant or RAID 5 / 6/1 0 for their combination. This setup traditionally requires a separate, fully hardware RAID controller, but modern SATA drive controllers split the RAID process between device drivers and embedded microcontrollers, which is a cost effective solution.
  • As you can see, the three modes of operation mentioned above differ significantly in terms of functionality and implementation. For each of the above three options, Windows must use a completely different driver, even if the hardware itself (both the physical disk controller and the disk) hasn’t changed.

    On most computers, the IDE / AHCI / RAID mode can be set via BIOS and changed on the fly without having to wipe disks. If Windows was installed and started in one mode, but a different mode was configured (due to a changeBIOS setup changes, BIOS update, BIOS reset, etc.), the existing driver is no longer sufficient.

    How To Fix The “Not Mounted Boot Volume” Error Message In Windows XP

    Step 1



    What does Unmountable boot volume?

    What causes the boot volume to be disabled in Windows 10 and how to fix it. A “boot volume” is a partition on your hard drive that stores boot files and the Windows system. If you see the “Unmountable Boot Volume” error, you cannot access Windows and are stuck in a blue screen (BSoD) error.

    How do I use Windows XP recovery console?

    Install Recovery Console
    1. Start Windows XP.
    2. Insert the Windows XP CD into the drive.
    3. Go to start.
    4. Run.
    5. Enter the following command, but replace e: with the letter of your computer’s optical drive: e: i386 winnt32.exe / cmdcons.
    6. Press the Enter key.
    7. In the Windows Setup warning message, click Yes.
    8. Wait for the process to complete.

    How do I fix Unmountable boot volume Windows XP?

    Unused boot disk in Windows XP
    1. To fix this problem, start the Recovery Console.
    2. In the Recovery Console, enter chkdsk / p to see if the disk is faulty or marked dirty.
    3. If no errors are found on the hard drive after this check, restart your computer.





    Troubleshooting Tips Cannot Open CD Driver


    Here are some easy ways to fix the problem opening the CD driver. If the door still won’t open, insert the end of a straight paper clip into the manual eject hole on the front of the reader. Close all programs and turn off your computer. Unplug the power cord from the outlet. Find the small hole on the front of the player.

    The CD is in the drive. You may need to apply a little pressure to activate the manual eject tray. If the CD tray opens partially, pull gently to check if it opens fully. If it no longer opens, the CD-ROM drive gears are likely damaged or out of place.



    Have you ever had to open your CD or DVD drive (commonly known as an optical drive ) but couldn’t? It’s just your luck, your favorite movie, video game, or music was probably inside.

    Maybe the laptop lost power, maybe the drive on your desktop just stopped responding, or maybe the door just got stuck, or the drive just tried to damage things.

    No matter what happens or what you think is going on, there is no need to replace a disc or drive just because the eject button is not doing what you expect.

    Fortunately, one of the following two methods is almost always sufficient to open the drive:

    CD-ROM Drive Software Can Cause Problems

    Your CD player uses several programs to operate and read discs properly and may need updating. System updates can cause compatibility issues with your preinstalled drivers, firmware, and BIOS settings.

    Me ode 1 – Try Extracting On Windows

    Select “Start”> “Computer”. Right-click your CD / DVD drive and select Eject from the drop-down menu. Sometimes, you can use Windows commands to eject a stuck drive.

    ” >

    Method 2 – Software And Drivers

    The CD / DVD player worked a week ago, right? But suddenly it stops. You probably installed a program, application, update, driver, etc. conflicts with your CD / DVD drive driver.

    Perform a system restore to resolve this issue. System Restore removes several files and changes on your computer that have been made over a period of time. If you’ve recently updated your operating system, this can often lead to incompatible device drivers.

    You can also try uninstalling and reinstalling your CD / DVD driver. To do this, you need to make sure you have a backup of your driver. You can download it from the CD / DVD drive manufacturer’s website.


    Method 3 – Forced Ejection

    Then you can try to force eject the CD / DVD tray. Not all readers and writers have this feature. To verify that this is the case, look next to the CD / DVD drive and you will see a small hole.

    Press the button with a toothpick, bent paper clip or needle. It may or may not open up the reader. Many people report that this does not work. But some reported that it was. Exile be with you.

    ” >

    Method 4. Some Strange Things That Work

    Close all applications and make sure you save whatever you need to save. Restart your computer. After restarting boot, press the eject disc button before the Windows boot screen appears.

    If you are using a slot-loading drive (MacBook), this is the eject button on your keyboard. Do not hold down the button. Press it several times and quickly, as if it’s the A button and your Mario Bros level 10 is trying to defeat Bowsera. Believe it or not, it often works. If Windows boots at the logon screen and the tray does not open, stop pressing.

    ” >

    cannot open cd driver

    – Turn off your computer, unplug the power cord and wait a few minutes. Plug it back in, run it and try the step above. For more information, see this article on USB connection problems.

    – Lightly tap it. Don’t use a lot of electricity, just light pressure. Sometimes, especially in slot-loading drives, the disc may not bounce properly.

    ” >



    What do I do if my CD drive wont open on my CPU?

    Unpack a paper clip and insert one end of a paper clip into the hole to pop out the CD tray. You may need to apply some pressure to activate manual tray ejection. If the CD tray opens partially, pull gently to see if it opens fully.

    How do I open my CD drive if my power button is broken?

    Find Windows Explorer and open it. In the computer window, select the locked disk icon, right-click the icon, and select Eject. The CD compartment should open.

    Why my CD drive is not opening?

    Stop or tune any software that creates discs or controls the drive. If the door still won’t open, insert the end of a straight paper clip into the manual eject hole on the front of the reader. Close all programs and turn off your computer.





    Steps To Repair Windows Vista Error Message List


    If you have a list of Windows Vista error messages on your computer, this article might help. With Vista new features, there has been criticism of the battery life in Vista laptops, which can drain the battery much faster than Windows XP and reduce battery life. If Windows Aero visual effects are disabled, battery life will be the same or better than Windows XP systems.






    Reasons For This Error

    We know this error is caused by one of the following reasons:

    Fix “0x00000109” On Windows

    Windows installation CD / DVD required!
    Some of the following solutions tr You can also use the Microsoft Windows installation CD or DVD. If your computer does not have a Windows installation CD, or you run out of Windows installation media, you can use Easy Recovery Essentials for Windows instead. EasyRE will find and fix many problems automatically, and can also be used to fix the problem with the instructions below.

    Solution # 1: Scan For Viruses

    If error 0x00000109 is caused by a virus that can modify kernel data, run a virus scan and delete any infected files it finds.

    If the system files are infected and you delete those infected files, Windows may stop working properly.

    Open your antivirus software and scan. If you don’t have an antivirus program, use the antivirus scanner built into Easy Recovery Essentials that runs outside of Windows (it can be run from a CD / DVD or USB stick) and can scan your computer deeply for viruses:

    The professional version of Easy Recovery Essentials for Windows has powerful antivirus and scanp rootkits, which can usually fix these and other similar errors caused by viruses, rootkits and Trojans. or spyware. EasyRE is currently available for Windows XP, Vista, 7 and 8 and can be downloaded and created on any PC.

    1. Download Easy Recovery Essentials. Be sure to write down your version of Windows (XP, Vista, 7 or 8) before downloading EasyRE. This guide will help you determine which version of Windows you have installed. For the purposes of this tutorial, you need the professional version of EasyRE.
    2. Capture image. Please follow these instructions carefully to burn a bootable ISO as creating a bootable CD can be difficult! In addition, these instructions will explain how to create a bootable USB or EasyRE recovery USB.
    3. Boot your computer from the Easy Recovery Essentials CD or USB drive that you created.
    4. If EasyRE is running, select the Antivirus Scanner option and click Next .

      In Easy Recovery Essentials, select Antivirus Scanner.

    5. After EasyRE has scanned the drives on your computer Next, identify and select the drive letter for your Windows installation from the list, then click the Scan button to start.

    How To Fix System Restore Error


    These repair ideas are worth reading if System Restore error occurs on your computer.

    System Restore is a program available in all versions of Windows 10 and Windows 8. System Restore automatically creates restore points, system file storage, and settings on your computer at specific times. You can also create a restore point yourself.

    System Restore is a Microsoft Windows feature that allows a user to restore the state of their computer (including system files, installed applications, Windows registry, and system settings) to an earlier point in time. to fix system errors or other problems.

    System Restore is a feature of Microsoft Windows that allows the user to restore the state of their computer (including system files, installed applications, Windows registry, and system settings) to an earlier point in time. to fix system errors or other problems.






    What Happens During A System Restore?

    Restoring your computer to a previous state only affects Windows files. This data type is usually responsible for problems that can beThis could lead to using System Restore.

    If strange things happen on your computer after installing the driver, the problem can be resolved by returning the system to its previous state before installing the driver, since System Restore cancels the installation.

    system restore function

    For example, suppose you are restoring your computer to the state it was in a week ago. All programs that you installed during this period will be removed during a system restore. Understanding this is important so that if you find that one or two programs are missing after recovery, you do not believe that your computer is in an even worse state.

    Does System Restore Fix Most Minor Problems With Your Client Computers, Or Do You Use Other Troubleshooting Methods?



    What is the importance of System Restore?

    System Restore is used to restore important Windows files and settings, such as drivers, registry keys, system files, installed programs, and more, to previous versions and settings. Think of System Restore as an “undo” feature for the most critical parts of Microsoft Windows.

    Is System Restore Safe?

    System Restore does not protect your computer from viruses and other malware, and you can restore viruses using system settings. It protects against software conflicts and faulty device driver updates.

    What happens when you do a system restore?

    System Restore takes a snapshot of certain system files and the Windows registry and saves them as restore points. In the event of installation failure or data corruption, System Restore can return the system to a working state without having to reinstall the operating system.





    An Easy Way To Fix System Recovery Options


    • Reboot your computer.
    • Press F8 right after the computer boots up, but before the Windows Vista logo appears.
    • You should now see the Advanced Boot Options menu.
    • Select the Repair your computer option.
    • Press the Enter key.



    / Guides /

    Windows System Restore – Guide for Windows XP, Vista, 7, 8, 10

    This guide describes Windows System Restore for the following Windows versions: Windows XP, Vista 7, 8, 8.1, and 10.

    What Is System Restore?

    System Restore is a Windows feature that allows you to restore your computer to a previous state. These restore points can be installed automatically or manually.

    This guide describes the recovery feature for the following Windows versions:

    • Windows XP
  • Windows Vista
  • Windows 7
  • Windows 8
  • Windows 10
  • If you’re looking for a recovery drive for your computer, see Loading a recovery drive.

    Use Easy Recovery Essentials To Recover Your Computer

    If you need to get your computer back up and running, download our Easy Recovery Essentials recovery disc to get your computer back:

    1. Download Easy Recovery Essentials from here.
    2. Capture image. Please follow this carefullyinstructions to burn a bootable ISO, as creating a bootable CD can be difficult! In addition, these instructions will explain how to create a bootable USB or EasyRE recovery USB.
    3. Open Easy Recovery Essentials. It starts with a list of detected Windows installations

    How to Fix Windows 8 Operating System Sony Vaio Solucion Easily


    In this article, we are going to find out some possible reasons that might be preventing Windows 8 operating system from finding Sony Vaio Solucion, and then we will provide you with possible solutions that you can try to fix the problem.

    Since no boot device was found or the operating system is missing, if the BIOS cannot find the boot device, checking the BIOS settings might be a good solution. Press the button to open the BIOS menu. The key depends on the manufacturer and model of the computer. It can be one of the following values: Esc, Delete, F2, F8, F10, or F12.



    Fix “Operating system not found” startup error for Windows XP, Vista, 7, 8, 8.1 or Windows 10.

    This bug is common on Sony VIO laptops, including the Ultra T and S series books

    What Is The Reason For The “System Not Found” Error?

    When your computer boots up, the BIOS will find a system on your hard drive to boot. If there is no system, the computer does not know where to go and you will receive a message to resolve the problem. Here are the main reasons for the lack of a Windows operating system.


    1. Remove any added hardware and removable media.
    2. Reset your computer’s BIOS to default values.
    3. After resetting the BIOS, make sure the hard drive is recognized by the BIOS.
    4. If the hard drive is not recognized in the BIOS, a hardware failure has occurred and the hard drive may need to be replaced.
    5. If the hard drive is recognized in the BIOS, but the operating system does not boot, use the Assist or F10 button to access the recovery tools and recommend backing up your data (if possible).
    6. After backing up your data, perform a completeIt can restore the system by opening a hidden partition.
      The note:

      • If the hidden partition is not accessible, use recovery media.
      • If you cannot access or successfully complete the backup, you can only perform a full system restore.
      • Sony Electronics is no longer authorized to sell system recovery media for VAIO PCs shipped with operating systems prior to Windows 7. If you have not created recovery media or if you have lost your recovery media. If you are lost, contact Best Buy at 1-800-433-5778 for options to repair and restore your VAIO computer.

    operating system not found windows 8 sony vaio solucion

    If the problem persists, repair is required. Go to product repair.


    • Each of these steps is a possible solution to error messages. Check the status of the operating system after each step by restarting your computer. If for some reason you are unable to complete a step, just proceed to the next step.
    • This solution is for all V computersAIO® with Windows® 7 or Windows Vista® operating system. For this reason, some steps are only formulated in general terms. This is because the process for performing this particular step differs depending on your computer model.
    • For more information on a specific model and how to complete any of the steps in this solution, refer to your computer manual, or complete your specific model and search the Knowledge Base again for your specific operation. which you want to follow.

    The note:

    • If the hidden partition is not accessible, use recovery media.
    • If you cannot access or successfully complete the backup, you can only perform a full system restore.
    • Sony Electronics is no longer authorized to sell system recovery media for VAIO computers shipped with operating systems prior to Windows 7. If you have not created media forOr if you have lost your recovery media. If you are lost, contact Best Buy at 1-800-433-5778 for options to repair and restore your VAIO computer.