Computer won't load any programs after a few seconds and gets slow.

Hello, I am currently running Windows 7 Home Premium 64 bit and as of this morning whenever I startup my pc I have about a 10-30 second window maybe (sometimes even shorter) that I can actually get programs to open before my pc just seems to get very slow and nothing at all will open. For example things like ctrl+alt+del takes about 15 seconds before it just goes to a black screen and says the process cannot be completed, whenever I pull up the start menu it will freeze and nothing opens from there, and even trying to refresh the desktop or shutting down/restarting crashes it. I have gone into safe mode with networking to get on Chrome and try to find solutions but nothing has worked. I've ran a full system scan with Malwarebytes and the first time it found only one infection and I quarantined and removed it, but the problem still occurs. I've also done a system restore twice to no avail. I have no more ideas and would greatly appreciate if anyone has a solution to this problem.

Everything works fine in safe boot so? Then sounds like some virus shit... You're talking about malware bytes but what's your antivirus first?

Ok I'll try remember that, sorry.