Hi. I upgraded my Windows 10 to Windows 11 last year. However, after update, my index stopped running. Most of my apps are not working well. I cannot run apps as admin. When my PC starts it usually takes 5 - 10 minutes. Also, Windows Updates are not available. I am able to download but it cannot be installed.
I bought my PC in 2020 with a built-in office. Is there any way I can repair this?