My friend has a microsoft windows wireless mouse and all of a sudden it just stopped working. I have check his comp for viruses and other malware and its clean. I only had view point. Im wondering if there is anyway any mouse related files could have been corrupted or if there is anything that could have caused this to happen. Thank for any help.

go to control panel administrative tools and system then hardware then device manager and see if there is a conflict with the mouse there will be a puncuation mark on it.if not try reinstalling the drivers.