Earlier today, I installed a bunch of updates that came through the pipes, but two of them "Microsoft - keyboard - Microsoft Hardware Keyboard" and "Microsoft - Pointing Drawing - Microsoft Hardware USB Mouse", killed the OS's keyboard and mouse drivers, and crippled my Microsoft Wireless Transceiver. It also hampered any attempts to plug in another, wired, Logitech M&Kb set. I had to restore my system to an earlier point to reverse the damages.
I'd be wary of these two updates if you see them. Just passing along the word.