Fresh install of Windows 10, well a week ago. I didn't install anything strange, just some audio software I always use and some games. After about a week, I couldn't search apps in the start menu. Then I couldn't search apps in the folders, then I couldn't open my mail program, then I couldn't open calendar from the taskbar! The only remedy as of now is to create a new user account, which works perfectly fine.
What the hell is wrong with my main user? I had this problem before on a fresh install years ago, but I don't remember what I did to fix it, or what caused it.