I am not sure what started this, but my start button, when pressed won't show the start menu button. The start menu also won't show when pressing on the windows button. This issue also affects some buttons on the taskbar, like the Network, Time, Sound and some others that usually gives a popup, but now does nothing when pressed.
After searching around, I tried some suggestions online, and found out that
sfc reported that I have corrupted files (Error messsage: Windows Resource Protection found corrupt files but was unable to fix some (or all) of them).
dism also fails (Error message: Error: 0x800f081f. The source files could not be found.). Since I don't have the installation media, this isn't a good option as for now.
DISM /Online /Cleanup-Image /RestoreHealth
Trying it on another user, shows that start menu still works fine which indicates the issue is not actually with Windows itself, but my account (connected to Live).
Assuming that I don't want to go to drastic measures like doing a Refresh, or changing accounts, is there a way to solve this?
Update: I don't think it is a duplicate, since the answer given seems to be outdated according to the source I used above, it gives issues when executed from builds after November. I am currently using the latest build. Also, according to the given answer there, the solution is to execute command via powershell to reinstall packages. Doing only that part doesn't resolve the issue, in my case. (See comment below).