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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:
- 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.
- 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.
- At the Command Prompt, type
EFI Partition Repair (for GPT-partitioned drives)
For systems using GPT-partitioned drives, repairing the EFI System Partition (ESP) is necessary:
- Run Diskpart Utility:
- Open Command Prompt in WinRE.
- Type
diskpart
and thenlist disk
to display all disks. - Select your boot drive using
sel disk [number]
.
- 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 withexit
.
- Use
- 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
.
- Navigate to the ESP’s Boot directory using
- Finalize with Bootrec:
- Run
bootrec /rebuildbcd
, then restart your PC.
- Run
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:
- 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.
- 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:
- Enter WinRE:
- Reboot and enter the Windows Recovery Environment using F11 or F8 keys.
- 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:
- Access Command Prompt in WinRE:
- Follow the steps to enter the Windows Recovery Environment.
- Choose Command Prompt from the list of options.
- 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:
- At the Command Prompt, enter
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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