Borderless Windows

Last night i was messing with the graphics setting in the appearance, visual affects, and now the windows on my screen dont have borders, and i cant close out of anything. Ive tried setting the graphics back to none, but that didn't help. Ive also tried resetting my computer, but nothing changed there either. The only time i see windows is when i try to change the graphics to anything other than none, and it shows up for around 40 seconds because it is asking me if i want to keep previous settings, or continue to the chosen option. I have no clue how to fix this, please help.

If cinnamon, try pressing Alt + F2 and running mdm --replace if mate run marco --replace