For the last few weeks, my taskbar has randomly restarted; that is, it disappeared for a few seconds, all the icons on it disappeared, then came back. Simultaneously, my wallpaper will disappear. This also happens when I try to
*Launch the File Explorer (D:)
*Launch Wolfram Mathematica in safe mode.
This is probably stupid, but I also feel this has something to do with java -- specifically, javaw.exe. Any tips?

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