My ccleaner worked just great last night. This morning I booted up my laptop and my ccleaner would not open. I removed, reinstalled it and still nothing. If I use my Anti-virus, I can open it there and run it, but not from the shortcut icon. I get some error message that something could not be installed. I didn't take a screen shot when that happened but if I get that message again I definitely will add it to this post.