安裝過parallel之后，通常我們習慣直接從Application文件夾中刪除，但是這樣并不能刪干凈。
打開terminal，輸入下面的命令。

sudo rm -rf /Applications/Parallels\ Desktop.app \
sudo rm -rf /Library/Parallels/Parallels\ Service.app \
sudo rm -rf /Library/Parallels/Receipts/com.parallels.pkg.virtualization \
sudo rm -rf /Library/Preferences/Parallels \
sudo rm -rf /Library/Parallels \
sudo rm -rf /Library/QuickLook/ParallelsQL.qlgenerator \
sudo rm -rf /Library/Spotlight/ParallelsMD.mdimporter \
sudo rm -rf /Users/*/Applications\ \(Parallels\) \
sudo rm -rf /Library/Logs/parallels.log \
sudo rm -rf /private/var/db/Parallels \
sudo rm -rf /private/var/.Parallels_swap \
sudo rm -rf /usr/lib/parallels

就可以清理干凈了。