Windows 10: Undo This, Undo That option lurking in windows right click options

like when i right click on windows homescreen and in the options with refresh, display settings, personalize it also shows undo delete, or undo move, undo this undo that etc . i dont what that undo this that option to come up. what can i do? sorry for my bad english. a help would be appreciated.

:)

 

How to undo "always open with" option in Windows 10 (1803 build)

I accidentally click "always open with" a particular application on a BibTeX file and now the icons of all such files change to the icon of that app and I cannot find a way to undo the operation. In fact, I want Windows to always ask me how to open
a BibTeX file instead of sticking to a specific program. Thanks for any suggestions!

Here I found some related posts but none of them seem to solve my problem:

• How do I undo "Always open with" option in Windows 10
• How to undo "Always open with" option in Windows 10

Here are what I've tried, but none of them works:

• Execute "assoc .bib= && assoc .bibtex=" in cmd.exe as Administrator.
  Nothing happens.
• In Settings under "choose default apps by file type", remove the default app at ".bib" entry.
  However, there's no such entry.

 

Undo option in File Explorer

Hi Helena,

We appreciate your time and effort for getting back to us.

Try the following steps and check if it helps:

• 
  Press Windows + E keys from the Keyboard to open the
  File Explorer.
  
• 
  Click on the drop down of Customize Quick Access Toolbar beside
  File Explorer.
  
• 
  Click on Undo.
  

Kindly let us know if you need any further assistance with Windows. We are glad to assist you.

Thank you.

 

undo system restore

Yes in the system restore options there will be an Undo button to go back.

1. If you boot to advanced startup options from within Windows 10, you must be signed in as an administrator to undo a system restore.

2. Click/tap on Troubleshoot.

3. Click/tap on Advanced options.

4. Click/tap on System Restore.

5. If you booted to advanced startup options from your Windows 10 installation media, click/tap on your listed Windows 10 OS, and go to step 7 below.

6. If you booted to advanced startup options from within Windows 10, click/tap on an administrator account you want to provide credentials for.

A) Enter the password for this administrator account, and click/tap on Continue.

7. Click/tap on Next.

8. Select the restore point that has Undo for its "Type", and click/tap on Next.

See if that helps.