I thought I'd create a separate thread just about removal of old avast and installation of the new version. Or no removal? I'm ready soon to install v5.0. Currently running avast!4.8. Some people install 5.0 without removing 4.8. Others say to always uninstall when going from one version number to the next (like 4 to 5). But I checked the avast! 5.0 FAQ and it states... Q: Is it required to uninstall avast! 4.x before installing avast! 5.0? A: Yes, but there isn't necessary any user interaction to uninstall avast! 4.x, because installer of avast! 5.0 is able to detect previous instance of avast! 4.x and uninstall it automatically. I like that! It looks like 5.0 uninstalls 4.8 automatically. Any users go that route, and let the avast! 5.0 installer remove the old version? I'm tempted to do it that way. For those who have uninstalled 4.8 and used the removal tool... did you first use Add/Remove Programs, and then run the removal tool to get remnants? Or did you just skip the Add/Remove and go straight for the removal tool?