I am running CCleaner (Free version) - Windows 7 Home Premium 64-bit SP1. Yesterday I updated CCleaner to v5.42.6495 (64 bit). Now CCleaner will analyse, but when I hit 'Run' it bombs out. At the same time Google Chrome wouldn't shut down correctly. I wasn't sure if the two problems were inter-related. I have deleted and reinstalled both Google Chrome and CCleaner (free), but still have the same problem. Please can anyone help? (I have the same setup on my second pc, without a problem.) I am not very computer-savvy, so a simple fix would be great! (I'm also running Kaspersky Total Security (paid) and Malwarebytes (free) on both machines.)