Windows 7 Developer Activation - Kb780190 -

You're referring to a rather infamous issue!

The activation was not persistent and could be easily detected by Microsoft's Windows Genuine Advantage (WGA) validation checks. If users didn't keep their systems isolated from the internet, the activation would likely be flagged as invalid, and users would be required to reactivate or face limitations on their system's functionality. Windows 7 Developer Activation - kb780190

This exploit gained popularity on various online forums, particularly among tech enthusiasts and pirate communities. While some users took advantage of the exploit to activate their Windows 7 installations, others used it as a temporary solution before purchasing a legitimate license. You're referring to a rather infamous issue

Microsoft eventually patched the vulnerability and made efforts to clean up the exploit's aftermath. Users who had taken advantage of the exploit might have encountered difficulties with future updates, and their systems might have been flagged as non-genuine. This exploit gained popularity on various online forums,