Windows 10: How can I revert a change back to an hour without deleting anything or reverting my entire...

I accidentally uninstalled a game, and as I tried to reinstall it, something went wrong and now it won't reinstall at all. I want to revert my PC's status to an hour or two ago back to when it was installed, but I don't know how to do it. I know I can because I've done it before, but I don't remember how to do it. I run on Windows 11, and the game in question isn't really a game, but a series of mods for Hearts of Iron 4 on Steam.

:)

 

Display langage reverted back


I followed the suggested actions: everything OK from step 1. and I attach as requested the output for step 2.



for convenience I attach the google translation



I'm ready to act following suggestions (if any) before...going through the restore (please don't misunderstand, I'm not looking forward doing it).

I appreciate in any case your help

 

Reverting back to IE8

I manually installed the new IE9 Beta to try it out, but there are some issues with it and I'm looking to revert back to IE8. I tried going to my installed updates and I didn't see it there, it isn't under my installed programs list either.

Short of doing a system restore, what else can I do?

Windows 7 Pro 64-bit

 

WIN10 UPDATES NOT WORKING. HOW TO REVERT TO WIN7?

Thank you for responding.

Just to clarify, your steps listed here is to allow me to revert to WIN7?