For the past month my father has told me that his computer has been disabling his computer. Basically, while he's doing something on his computer, a windows 10 chime sound will play over and over for about a minute and every time it chimes, his mouse starts acting wonky, and in the worst case, his computer will completely freeze. Thus, requiring a hard restart.
I tried deleting every chrome extension he has enabled that I didn't recognize. I pushed various devices hooked into the computer, in case the devices were loose. I tried unhooking a few unneeded devices. The problem persists regardless.
While the sound is chiming, something pops-up in the bottom right corner next to the clock, but only for a split second and I can't see what it is.
I've only noticed the problem while I have chrome internet browser open, but I don't know if it's isolated to that. I'm not the primary user of this computer and I only have limited access to this computer.
NOTE: I am not sure how often I can access the computer in question, so it may be that I only get a chance to work once a week. PLEASE don't hold back. I know how computers work, so give me as much to work with as possible in a single post.