Hello, I’m Virginia, a fellow user like yourself.
Sorry to hear you’re experiencing problems. May I ask which Windows 10/11 build are you running - 21H2 or 22H2?
I don’t believe Windows research is an app/program/setting on the pc:
https://www.microsoft.com/en-us/research/
As for the search problem.
Right click on start & choose powershell/terminal with admin & type/copy & paste these cmds one at a time then click Enter:
SFC /SCANNOW
DISM /Online /Cleanup-Image /StartComponentCleanup
DISM /Online /Cleanup-Image /RestoreHealth
If problem remains:
I recommend an in-place upgrade repair.
In a nutshell you just download the Win 11 .iso, mount this by right clicking on the file & choosing Mount, run setup by double clicking the file, follow instructions & continue with the install. This will upgrade you to 22H2 if you’re not already running this build.
Please note a repair install is not a reset, this is a last attempt at repairing a PC without a clean install. If this fails to repair the problem then usually a clean install is required.
Download here: