My notebook is a few years old and was recently upgraded (?) to Windows 11. Everything was fine until a few weeks ago. I now get a 'file system error (-805306367)' whenever I try to do things such as play an mp3 music file, or try to view a photo. Also, the icons at the bottom right on the taskbar (volume, notifications, battery etc..) no longer respond to a left-click. I can still use the notebook but would like to solve whatever is causing this problem. Any help appreciated.