Windows 10: I messed up with registry

I've had an assignment in my university and I messed up with HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control EarlyStartServices registry. can someone tell me how to revert it?It was an array and now it's just a long string.

:)

 

Registry editing

Hello,

This issue may have occurred after one of the following situations:

• You upgrade the Windows operating system.
• You install or uninstall CD or DVD recording programs.
• You uninstall Microsoft Digital Image.

Given that, we suggest performing the methods in this article:
Your CD or DVD drive is not recognized by Windows or other programs.
The resolutions that are listed in that article may help solve some instances but not all instances of this problem.

Important:This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow
these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, refer to the following Microsoft Knowledge Base
article.

Feel free to update us with the results.

 

registry fix

Hi,

Thank you for posting your query on Microsoft Community.

As per the description, I understand that you are facing some issues using Windows 10.

I would like to know some information.

• 
  What registry fix are you trying to run?
  
• 
  What is the exact issue that you are facing?
  
• 
  Have you taken a backup of all your data?
  

I would suggest you to take a backup of all your data before doing any changes in the registry keys. If you do any incorrect changes to the registry you won’t be able to boot the computer.

Disclaimer: This section, method, or task contains steps that tells you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps
carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in
the Microsoft Knowledge Base:

322756 (How to back up and restore the registry in Windows - Microsoft Support )

How to back up and restore the registry in Windows.



Please let us know the information in brief. We will be glad to assist you further.

 

Windows Update corrupted my Registry and Microsoft decided to turn off Registry Backup without telling me

I’ve done all off the above options and none of them work not even reset system.

They all fail because the registry is messed up. DISM fails with error 23 SFC scan now finds nothing wrong and bootrec /rebuildmbr doesn’t work because it’s not able to set the boot record because the registry is messed up.

If the system can’t interact with the registry files and Microsoft stupidly disabled registry backup, none of the recovery tools work because… even recovery points require… you guessed it, registry access.

How about you try renaming your registry files in safe mode to .old then reboot and then try to run any of the steps you suggested and watch how they all fail because they all rely on the registry files being accessible.