Fix Startup Repair Cannot Repair This Computer Automatically

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To address the issue of “Startup Repair Cannot Repair This Computer Automatically” on Windows, various updated solutions can be implemented. The problem usually arises due to boot sector corruption or compromised system files.

Using the Bootrec Utility

The Bootrec utility is a powerful tool for repairing boot issues in Windows. Here’s how to use it:

  1. Access Command Prompt:
    • Restart your PC. If it fails to boot twice consecutively, Windows will automatically enter the Windows Recovery Environment (WinRE).
    • In WinRE, navigate to Troubleshoot > Advanced Options > Command Prompt.
  2. Execute Bootrec Commands:
    • At the Command Prompt, type bootrec /FixMBR and press Enter to repair the Master Boot Record.
    • Type bootrec /FixBoot and press Enter to repair the boot sector.
    • Enter bootrec /ScanOs to scan for existing OS installations not reflected in the boot configuration.
    • Type bootrec /RebuildBcd to rebuild the Boot Configuration Data.

EFI Partition Repair (for GPT-partitioned drives)

For systems using GPT-partitioned drives, repairing the EFI System Partition (ESP) is necessary:

  1. Run Diskpart Utility:
    • Open Command Prompt in WinRE.
    • Type diskpart and then list disk to display all disks.
    • Select your boot drive using sel disk [number].
  2. Identify and Select ESP:
    • Use list vol to display all volumes.
    • Look for the ESP, typically a FAT32 volume around 100MB, and select it using sel vol [number].
    • Assign it a drive letter (e.g., R:) using assign letter=R:, then exit Diskpart with exit.
  3. Backup and Recreate BCD:
    • Navigate to the ESP’s Boot directory using cd /d R:\EFI\Microsoft\Boot\.
    • Rename the BCD file for backup with ren BCD BCD.bak.
    • Recreate the BCD store by executing bcdboot C:\Windows /s R: /f ALL.
  4. Finalize with Bootrec:
    • Run bootrec /rebuildbcd, then restart your PC.

Additional WinRE Advanced Options

Windows Recovery Environment provides several advanced options for troubleshooting:

  • Restore Registry from Backup:
    • Access Command Prompt in WinRE.
    • Use diskpart to identify your actual OS partition.
    • Navigate to C:\windows\system32 and restore the registry from a previous backup if available.
  • Run SFC and DISM Scans:
    • Boot into Safe Mode and open Command Prompt.
    • Run the System File Checker with sfc /scannow.
    • Follow with the Deployment Image Servicing and Management (DISM) tool using DISM /Online /Cleanup-Image /RestoreHealth.

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Disabling Automatic Startup Repair

Automatic Startup Repair can sometimes hinder the boot process. To disable it:

  1. Access WinRE:
    • Reboot your computer and use the F11 or F8 key to enter WinRE.
    • If unable to access WinRE with these keys, try restarting your computer three times to trigger the automatic repair environment.
  2. Disable Automatic Startup Repair:
    • Once in WinRE, navigate to Troubleshoot > Advanced Options > Command Prompt.
    • Enter the command bcdedit /set {default} recoveryenabled No to disable the feature.

Disabling Anti-Malware Protection

Early launch anti-malware protection can interfere with startup processes. To disable it:

  1. Enter WinRE:
    • Reboot and enter the Windows Recovery Environment using F11 or F8 keys.
  2. Disable Anti-Malware Protection:
    • Go to Troubleshoot > Advanced Options > Startup Settings.
    • Press the number key (usually “8”) to disable early-launch anti-malware protection.

Checking Device Partition

If Windows is installed on a partition other than the C: drive, this may cause startup issues:

  1. Access Command Prompt in WinRE:
    • Follow the steps to enter the Windows Recovery Environment.
    • Choose Command Prompt from the list of options.
  2. Modify Boot Configuration:
    • At the Command Prompt, enter bcdedit to check the current device and osdevice partitions.
    • If they are not set to C:, change them using:
      • bcdedit /set {default} device partition=c:
      • bcdedit /set {default} osdevice partition=c:

Resetting the PC

If none of the above solutions work, consider resetting the PC from Windows Advanced Startup by selecting “Troubleshoot” and then “Reset This PC”.

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