windows 7 freezes after few seconds

Hello,
I cannot access normal mode, safe mode or safe mode with networking on my laptop a few minutes after log in and also, adwcleaner freezes the pc when scan gets to infected shortcuts. At first I solved it by stopping skype startup and uninstalling the program, then it started again and I disabled all non microsoft services and it solved the problem for a while, then it only worked when all services were disabled and now it only works in safe mode with command prompt. Please help