Windows Firewall Unit is a fake security application from from the same
family as:
Windows Profile System,
Windows Precautions Center,
Windows Safeguard Utility,
Windows Repairing System,
Windows Activity Inspector,
Windows Protection Servant,
Windows Activity Inspector,
Windows Tweaking Utility, Windows Tasks Optimizer, Windows Work Catalyst ,
Windows Attention Utility,
Windows Inspection Utility,
Windows Supervision Center,
Windows Oversight Center. This rogue displays fake warning messages pushing users to buy a license.
If your PC is infected with
Windows Firewall Unit use
MBAM to remove the infection.