So, only about a week ago my pc has started acting weird. first when it starts up is ok but then when i try to open a program such as Firefox it doesnt open. so i go into windows task manager and all of the programs i open are stuck on 104k memory usage (except the ones that start on boot). The next thing that happens is my pc then turns into windows basic then it disconnects from the internet then about after 10 mins it goes back into the normal version of windows 7 and reconnects. i did a system restore to about 5 days ago and its still happening can anyone help me please i cant even browse the internet without it crashing.