help

I am newly joined in the forum . i need some help about ccleaner. After i was scanning cccleaner for registry cleaner option then i Click "fix selected issues", it shows "do you want to back up changes to the registry" i did yes, and saved it.now my question is, if i saw the registry was corrupt(suppose)than what could i do for saved registry icon which was saved by ccleaner...

English is bad.. sorry

If you need to restore the registry changes ccleaner made, right-click on the backup and choose 'merge'