Ok so from the name of the thread I need help with my pc. Problems are: lags a lot while typing, 10second delay on opening programs or typing, just freezes every so often now.
Maybe try an Anti-Virus, do you think you have any infections? What OS are you running? How many applications are open/running when these glitches occur? If this problem is in-game, maybe adjust the settings (video help)!
Laggy for typing? A. Just your computer B. Virus? (Can make things lag) Use like Elliot said Avast, or just a known anti virus application and works well C. Maybe you type to fast, just kidding lol. Opening program delay? A. Too many programs open???? (Just coming with the problems on the go!) B. All I have really look at B for "Laggy for typing?" Freezes often? A. Maybe your PC is old. B. Look at B before B before that B to see what B says. C. Your computer can't handle some applications?