So one day I logged on, and the background was black, and there was an Edge (I think) window open with plain black Times New Roman text on a white background that said something about product licence activation failure. I didn't see clearly as i immediately closed it without reading it (I thought it was a random pop-up window) Also, the shortcut arrows were back (I had removed them with Ultimate Windows Tweaker) and my recent folders seemed to have cleared. This isn't a huge problem, but I would like to know what happened and if there's any way I can reverse it without manually changing the background and stuff
Also my first time posting, so tell me if I'm doing anything wrong :)