Too late :( Do you know what it was and how to remove it? I have malware bytes free trial, but I would like to know what you know about just to keep my computer safe.
I'm not sure what it was, windows will however put whatever it is straight into quarantine as it can easily be detected, your compute is safe don't worry.
Spaceface14, its a trojan. i removed it with Windows Defender. you sadly have to do a full scan which can take a few hours. at the end it finds the threat and says to press the button and it restarts the computer. it removes it while restarting
