“Windows Activation Error Code: 0x44578” message is blocking me from accessing my desktop! My friend suggested that Windows activation notifications do not do that and you can use at least the basic functions on your computer and access your data, too. So what’s up with this “Windows Activation Error Code: 0x44578” error? Is it a virus? How do I eliminate the lock screen and access my antivirus then? I’d appreciate your quick answer, it’s really urgent