output.systems
I have a screen that comes up and freezes my system on my Mac Mini.
It starts with OUTPUT.SYSTEMS and trys to redirect me to another website. It also has an 800 number to call.
Please help!!!!
This is spam/scam adware. Quit Safari, then relaunch it while holding down the SHIFT key. This should prevent Safari from re-opening the window.
Remove Adware and Pop-ups
The Safe Mac » Adware Removal Guide
Remove unwanted adware that displays pop-up ads and graphics on your Mac - Apple Support