Looking for help odd PC behavior

Hey all not sure where to go, but I thought I might try here since I think it might be malware?

So far its happened twice. What happens is it feels like my mouse button get stuck kinda, anything I click it will seemingly keep clicking. However that is not what is happening, upon hitting the windows key the search prompt comes up and then I see a constant spam of `KILL`KILL`KILL`KILL

This goes on endlessly until I reboot the pc by basically just turning the power off.

I tried to research this `KILL spam but kill is such a common word its pretty hard actually. I figure its some software in the background trying to close a program but I cannot figure it out and Im not a coder by any means.

Any ideas?