Hi, all. Brand new Windows 10 machine. Had CCleaner for years on my old machine. Trying to get this installed on new Dell. The .exe file downloads and when I launch it (double-click) I get a status window that rolls up to 81% complete. The window then closes and .... nothing. I've disabled my AV, tried to redownload (direct from ccleaner.com), and done a reboot. No joy. Any advice?