[luki1412]

Originally Posted by Blinx Reinstalled Sourcemod+Metamod, Disabled Windows Firewall, Added an exclusion to my Antivirus, compile.exe properties all look normal. Not sure what else to try :/

Firewall has nothing to do with this. Its usually Antivirus and exceptions or pausing antivirus will do nothing here. It's usually caused by the antivirus ransomware protection so it "locks" folders and files where people usually put personals and photos, which are also the places ransomware attacks to encrypt them and then ask for money to offer decryption. Ive have the same problem with Avast products specifically. Some antimalware products might not even allow you to change the folders being protected. You can temporarily uninstall your antivirus solution to test this is the case though. Specific folders protected under ransomware protection should be listed within the software though so you should be able to check which folders are those.