Is it necessary to strictly following this when uninstalling ? http://kb.parallels.com/4709 Reason why I ask is I think the Terminal section can be omitted if you restart your Mac, it even says this on the Uninstall wizard when its completed that some files may be left behind. And to complete removal restart your Mac. In any case, after reboot, but before I did the Terminal, I browsed to those folders listed and couldn't find anything, even though the Extensions folder on Mac HD Regardless, I went though the Terminal process, and wen I did the sudo commands (not the first one) but the last few in a row, it didn't return any error, just moved to next line, Did this do the same thing as "if not found" symptom.. Judging by I didn't see these in Finder before I issued these sudo commands, I'm confident that these commands didn't work as could find the files. Can anyone clarify it this is correct ? Also, why doesn't the uninstaller remove license key, and, presumably if still exists, how can I remove this as well .. It the uninstaller is designed to remove a product, a restart is ok to remove files "that are in use" but it should remove all files on restart not just the main ones.