Can't create folders or import models

It started happening all of the sudden, whenever I try to créate a new folder or try to créate a material/import a model/etc (right-click tolos), my Editor crashes and not even the viewport responds (it is functional, but it won’t update the window, it gets graphically stuck)
I attached the log for when I try to créate a folder, it clearly says it fails to read a file, that there’s icons missing or something. I already even re-installed my OS (Windows 10), but to no avail…
Please help a fellow in need, not even my teachers know what is happening and I can’t afford a new computer to work with…
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Also, I tried starting it as administrator, same story.