How to repair damaged win7 startup file

Repair Corrupted Win7 Startup Files: Use Startup Repair or Command Prompt to fix startup issues. If failed, repair Bcd file manually. As a last resort, reinstall Win7 to repair corrupted startup files.

How to Repair Corrupted Win7 Startup Files

Corrupted Win7 startup files can prevent your computer from starting properly. Repairing corrupted startup files is crucial to restore normal operation of your computer. The following steps will guide you through the process:

Step 1: Use Startup Repair

• Boot your computer using a bootable Win7 installation USB drive or DVD.
• On the installation interface, select "Repair your computer".
• Select your language and keyboard layout and click Next.
• Click "Startup Repair" and it will scan and fix startup issues.

Step 2: Use Command Prompt

• If startup repair fails, you need to use Command Prompt to manually repair startup files:
• Start the computer and enter the Win7 installation media.
• On the installation interface, select "Repair your computer".
• Select your language and keyboard layout and click Next.
• Click "Command Prompt".

• Enter the following command in the command prompt and press Enter:

  <code>bootrec /fixmbr
  bootrec /fixboot
  bootrec /rebuildbcd</code>

• Restart your computer.

Step 3: Manually Repair Bcd File

• If the above steps don’t work, you may need to manually repair the Bcd (Boot Configuration Data) file :
• Start the computer and enter the Win7 installation media.
• On the installation interface, select "Repair your computer".
• Select your language and keyboard layout and click Next.
• Click "Command Prompt".

• Enter the following command in the command prompt and press Enter:

  <code>bcdedit /export c:\bcdbackup
  attrib c:\boot\bcd -h -r -s
  del c:\boot\bcd
  bootrec /rebuildbcd</code>

• Restart your computer.

Step 4: Reinstall Win7

• If all other fixes fail, you may need to reinstall Win7.
• Insert the Win7 installation USB flash drive or DVD into the computer and start it.
• On the installation interface, select "Install".
• Follow the prompts to complete the reinstallation process of Windows 7.

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