I used a windows registry cleaner and ticked the boxes for all file extensions. Now I am not able to open any file. None of the file extensions are opening although the system starts normally. When I press CTRL+ALD+DLT, only the explorer is running. How do I restore my system. Please help me.
I am not able to open System restore from System tools as the lnk is not opening.

The screen on my dell laptop is about to pack in. The cost of repair is £350 so thinking of getting a new one instead.

If I buy a macbook, will my windows office software work on it? If not, will the documents, emails etc I already have transfer from PC to Mac, and work?

Thanks

my windows explorer has been messed up 4 two days now, and i think it's a virus, but i have used so much anti virus scanner, it still dosnt work……. I have spyware doc and it says a malicous file is trying to get in explorer.exe or something…… when trying to get to control panel through task manager…. and im just wondering about a software to repair this..