How to Fix Windows Startup Error 0xc0000001

If your computer fails to boot, you may encounter the error code 0xc0000001 on the startup page. In general, the Windows startup error 0xc0000001 may be caused by various reasons, such as the corrupted system files, damaged RAM and so on. 

When encountering this error, the computer can’t boot normally. Therefore, in the following section, we will show you how to solve this Windows startup error 0xc0000001. 

But before proceeding on fixing this error 0xc00000001, you had better get your data back from the unbootable computer so as to keep data safe.

So, in order to get your data from the unbootable computer, you can use the professional backup software. Hence, MiniTool ShadowMaker is a good assistant which can help to keep your data safe. 

You just need to install MiniTool ShadowMaker on a normal computer, and then create the MiniTool bootable media. Next, use the bootable media to boot the computer encountering the error 0xc0000001. 

After entering the MiniTool Recovery Environment, you can choose to back up files and get them back from the unbootable computer. 

After getting data off from the unbootable computer, you can continue to fix the error code 0xc0000001. The following part will show you the detailed tutorial.

Solution 1. Uninstall the Problematic Software

If you encounter this error 0xc0000001 after newly installing a program, this Windows startup error may be caused by the newly installed software. 

So, you need to uninstall it first.

Because your computer can’t boot, you need to boot it from an installation disk. Then choose to Repair your computer to continue. After that, boot your computer into Safe Mode, and go to Control Panel to uninstall the newly-installed program.

After uninstalling it, reboot your computer and check whether the error code 0xc0000001 is solved. 

Solution 2. Run Startup Repair

If the above solution is not effective, you can also run the Windows built-in tool – Startup Repair to continue. This feature is able to scan and repair some system-related problems. 

Thus, you can boot your computer from the installation disk and choose to Repair your computer to continue. And choose Troubleshoot, then Advanced options, and then Startup Repair to continue. It will begin to scan your computer and fix it. 

When all process is finished, reboot your computer and check whether the error code 0xc0000001 is solved.

Solution 3. Run Chkdsk

The Windows startup error also may be caused by the hard disk error. So, in order to solve it, you can also check your disk. 

Boot your computer from the installation media to enter Windows Recovery Environment, choose to Troubleshoot > Advanced Options > Command Prompt to continue. 

Then input the command chkdsk c: /f and hit Enter to continue. 

When the scanning process is finished, reboot your computer and check whether the error code 0xc0000001 is solved. 

Solution 4. Run System File Checker

Besides checking your hard drive, you can also run System File Checker to fix corrupted system files which may lead to the error 0xc0000001 on startup. 

In this way, you also need to boot your computer from the installation media and open the Command Prompt line window.

Then type the command sfc /scannow and hit Enter to continue. 

When it is finished, reboot your computer to check whether the Windows startup error 0xc0000001 is solved. 

Solution 5. Copy SAM File

As we have mentioned in the above part, the Windows startup error code 0xc0000001 may be caused by the corrupted SAM file.

So, in order to solve this Windows startup error, you can try copying the SAM files. 

In this solution, you need to boot the computer from the Windows installation media to enter Windows Recovery Environment. Then open Command Prompt line window to continue. 

Then type the command copy C:\Windows\Repair\Sam C:\Windows\System32\Config and hit Enter to continue. 

When it is finished, you can reboot your computer to check whether the Windows startup error is solved. 

Solution 6. Reset This PC

If none of the above solutions works, you can choose to reset your computer. Windows provides this feature – Reset This PC. 

Just boot the computer from the installation media, and then choose Troubleshoot to continue. Then choose Reset This PC

Resetting the computer will help you to solve the system-related problems. But it will take some time, so just wait patiently. 

For more detailed solutions to Windows startup error code 0xc0000001, you can read the post: 6 Solutions to Error Code 0xc0000001 Windows 10 on Start Up 

Conclusion

To sum up, this post has introduced 6 ways to solve the Windows startup error 0xc0000001. If you have the same issue, you can try these solutions. Before solving this issue, remember to get data back from the unbootable computer first. 

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