Note: Your Antivirus might tell that it has a Backdoor Trojan but it doesn't have a virus, it is the crack that is setting off the antivirus because it uses algorithms to generate a license for you, it also patches files which also sets off antiviruses.
Screen:
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If your AVG (any version) keeps turning off, the fixes are included in the AVG8.5.287 RAR Archive in their appropriate operating system folders. (requires reboot directly after!)