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How to fix the Windows 7 MBR for 64bit OS

Discussion in 'Malware Removal FAQ' started by chaslang, Sep 28, 2011.

  1. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member


    MBR infections are only worsening and sometimes (rarely) can make computer unbootable after attempting to repair the infection. We recommend that you back up your data before hand and then continue with the below if you wish to attempt to remove this infection:

    Do you have your Windows 7 DVD? We need it to restore a clean MBR.

    If you do not have your Windows 7 DVD, you can create one with the Recovery Console (which is really all we need), here: Download Windows 7 64-Bit (x64) Recovery Disc

    1. If your PC is not configured to automatically boot from a CD/DVD, you may need to make changes to your BIOS to change the boot order boot from CD first. Or the may be an option to automatically get to a Boot Menu at startup from which you can chose to boot from CD.
    2. Reboot your computer.
    3. You'll hear the DVD spinning up, be ready to press ANY key when you see the following message:
    • This takes a while to load (30-45 seconds)
    • When the below screen appears:
    • Select your language and click Next.
    • Click the button for "Use recovery tools".
    • Then select "Command Prompt".
    • When open, the command prompt will look like this:
    • Type in bootrec /fixmbr and press ENTER
      Note: There is only a SPACE after bootrec
    • You should see:
    • Type exit and press ENTER
    • Now restart your computer WITHOUT booting off the DVD again (don't press a key when it says... "press any key to boot from cd/dvd...")
    Now rerun MBRCheck and attach its latest log. (How to attach items to your post)
    Last edited by a moderator: Nov 13, 2011

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