PC: dell optiplex 380, Windows7 64-bit professional OEM Dell
usb keyboard, mouse have stopped working in windows.
(1) keyb/mouse work at F2 bios level, or using an alternate boot cd, able F8 to select modes etc but after a certain point during Win7 boot, they stop working.
I'm able to access this pc via Logmein & operate it in that way but not directly.
I have alternate boot cd & can see or manipulate files on win7 HDD.
I don't right now have Dell's 64-bit Win7 cd for windows repair. Doesn't like 32-bit cd.
I did find an article suggesting 3 sys files may be corrupt. tried replacing the files below but didn't resolve.