stop wasting time with short cut solutions. If the problem is recurring it means you have no disk space worth talking about. Ccleaner only removes temp files, removing a program only frees up no more than 5g and next month the same problem starts again.
So as someone has said, remove all the porn on your laptop. Or extra documents you don't need.
If not, go add another hard-drive, external harddrive if you have to and continue watching your porn in peace.
Jose: If I make it through this thug life, I'll see you one day. The Lord is the only way to stop the hurt.