Then please do the following:

Delete the following folder on that machine:
This is a hidden folder.

Please ask your IT manager for help if you are not sure about the next steps.
To make this folder visible on Macintosh HD just open Terminal and execute the following orders:

sudo chflags nohidden /Library/ ~/Library/

defaults write AppleShowAllFiles -bool YES; killall -HUP Finder

It may asks for a password and confirmation