Updates completed, Windows Control Panel doesn't work.

[canuck257]

I just spent the last 30 hours downloading and installing all the update for 8.1 on my new Acer Laptop. Now the system will not shut down, update will not open and restore does not work. Also the sound system does not work. I've tried the recovery options but all I get is unending aero. Shutdown produces background apps still running and will only work if I physically turn off the power.

I'm at a loss to know what to do next. I did not expect to have these problems with a brand new system and by following all the proper procedures for updating.