I have noticed that if there are any Windows 10 pending updates, I get numerous issues with the higher level apps (Revit in particular). Reason? Don't know, I'm not an expert, but could be Windows installs some low level stuff then sets itself to pending mode, as it is usually waiting for a PC reboot before it can continue updating (mostly seems to happen with major updates, but also happens with some minor updates). The knock-on effect on higher level apps is not surprising, as the higher levels apps rely on Windows low level "stuff" to work properly.