So, there's a network of PC's with Windows 7 in them (one is 32bits and the other one 64bits). This has happened to 2 of those machines, when my client turns them on, all of the desktop elements are gone (shortcuts and files in the desktop), the background is black (I assume it's just missing), and browser data is gone (cache/history/cookies). Also, it seems to mess up keyboard keymaps, like you would've changed languages.
I've scanned it with both MalwareBytes and Avast, and they returned nothing (0 threats). Do any of you have any idea what this might be? I've searched online but found nothing.
I know this is very little info but there aren't any error logs or anything like that, it's very annoying to debug.