I must admit I do not know too much about computers on this leve, but... I have been using ccleaner regularly after every session for a few years now. I have always deleted every single registry line that turned up in ccleaner, never made a back-up, always deleted every single one, NEVER, not once had a problem... (I think)...
What can happen? A real example, or a few of them, could make me understand this...
Just look through this forum at the number of people who have had problems after cleaning their entire registry. The examples number in the 1000s if not more. The range of issues encountered are anywhere from a program no longer working, to not being able to open a known file type (i.e. .htm or .txt) to a computer being completly unable to boot and needing a fresh repair install of windows.
Just look through this forum at the number of people who have had problems after cleaning their entire registry. The examples number in the 1000s if not more. The range of issues encountered are anywhere from a program no longer working, to not being able to open a known file type (i.e. .htm or .txt) to a computer being completly unable to boot and needing a fresh repair install of windows.
Thanks for the quick answer, and sorry for writing in the long place....
Honestly I don't think much will happen if you have Vista or 7. Anything that's crucial to the operating system is locked down so tight you'd have to work pretty long and hard to delete it. You might loose something inconsequential that can be fixed with a reinstall. What the heck, I'll just ask, why not just make a backup?