Please quit Parallels Desktop completely. If there are any external storage devices connected to your Mac, eject and remove them. Then, launch Terminal application (Finder -> Go -> Utilities -> Terminal) and execute the following commands separately one by one (this will remove Parallels Desktop completely along with all of its traces):
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sudo su
NOTE: You will be prompted to enter your Mac password after executing the first command. Due to security measures you won't be able to see the password itself, just type it in and hit return/Enter.
rm -rfd /System/Library/Extensions/prl*
rm -rfd ~/Library/Preferences/com.parallels*
rm -rfd ~/Library/Preferences/parallels
rm -rfd ~/Library/Parallels
rm -rfd ~/Library/Saved\ Application\ State/com.parallels.desktop.console.savedState
rm -rfd /Library/logs/parallels.log
rm -rfd /Library/Preferences/Parallels/
rm -rfd /private/var/db/Parallels/
rm -rfd /private/var/.parallels_swap
rm -rfd /private/var/db/receipts/'com.parallels*'
rm -rfd /private/var/db/Parallels/Stats
rm -rfd /private/var/root/library/preferences/com.parallels.desktop.plist
rm -rfd ~/Applications\ \(Parallels\)/
rm -rfd /Applications/Parallels\ Desktop.app/
exit
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Close Terminal. Then, please launch Disk Utility (Finder -> Go -> Utilities -> Disk Utility) and run 'First Aid'. Once it finishes, reboot the Mac, reinstall Parallels Desktop and check for the issue.
Last edited: Aug 13, 2017