Regedit not opening/working/responding are frustrating issues in Windows 10.
If you suffer from one case, what should you do to fix the registry editor issue?
you might find some useful ways in this post onMiniToolto easily get rid of trouble.

Head to the next part to find some solutions.
DISM Deployment Image Servicing and Management, refers to a command tool to service and prepare Windows images.
If the Windows images get corrupted, it’s possible for you to run it to fix them.

Step 2: In the CMD window, typesfc /scannowand pressEnter.
Step 2: Input the following commands into the CMD window.
Remember to pressEnterafter each one.
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Findregedit.exeand rename it toregeditOld.exe.
Step 4: If your PC hasC:\Windows.old\Windows, copyregedit.exeto theC:\Windowsfolder.
If not, go to download regedit.exe online and put it toC:\Windows.

Step 1: In the search box, inputgpedit.mscand open this tool.
Step 2: Head toUser Configuration > Administrative Templates > System.
How to access it and use a restore point to revert Windows to an earlier state?
Find details from this post now.
Step 1: PressWin + R, inputsysdm.cpland clickOK.
Step 2: UnderSystem Protection, clickSystem Restore.
Step 3: Choose a restore point to continue.
Step 4: HitFinishto start the restoration operation.