After using Revo Uninstaller to uninstall an ArcSoft programme today RegSeeker found 45 further registry entries, all legitimate, so I deleted them. However when booting up I now get the "Your Computer May be at Risk" message. Avast is running okay and I've done a complete scan with MalwareBytes, SUPERAntiSpyware and also a Bootscan with Avast. Restoring the RegSeeker entries corrects the problem. By the tedious process of searching the ArcSoft entries with RegSeeker, deleting a few, rebooting, then restoring if necessary and searching again, I've narrowed it down to one of the three entries in the attachment. One of these is the rogue entry! Whittling it down further will be slow, if I don't guess the correct one, for when I reboot now and do a new search a further eight ArcSoft entries appear. I know I can turn off the Alerts in Security Center, but would like to know why I'm getting this message.