The error message is a popup window that says "Access is denied".
He didn't install anything at all.
We are not using CCleaner. Basically just put in the recovery disk provided by the laptop manufacturer.
The message before we load back using recovery disk was about system32 being corrupted and to fix, insert the recovery disk.
We chose to repair the windows rather than reformat.
Now the problem is his windows can't load safe mode by pressing F8.
So what happened was I tried to crash his computer in to get into safe mode.
We got in but after a while, it shuts down and restarts itself a few time before going back to normal.
I suspected it was due to heat on his laptop (because it was quite hot) but apparently he chose not to believe because he has not encountered before.
So I didn't want to try crashing and loading to safe mode again just in case he blames me for crashing his machine.
His drive have got 75 Gb out of 86Gb and according to him it seems that was the space he had before the laptop crashed.
Is there a way not to go into safe mode but able to get the security tab to change the permission to that restricted folder?
taking out the harddisk, connect to other computer and change security permission using other computer, possible?