When the WPA registry key is deleted, the whole licensing status of Windows 7 is re-initiated to the Initial Grace Period (more on Windows 7 and Visa license status), as if Windows 7 is just installed in OOBE (out of the box experience). The said WPA vulnerability is related to a WPA registry key which contains Last Rearm Time information in Windows 7. The ability to reset the rearm count for as many times as possible (infinity times until patched by Microsoft) allows users to run Windows 7 forever, without the need of activation nor modding the BIOS, and without applying any activation cracks.

Through a WPA vulnerability that Microsoft introduced in Windows 7, it’s possible to reset the remaining rearm count back to 4, which is the default number of times the rearm is permitted in out-of-the-box Windows 7. When a user uses up all three rearms available and remaining rearm count countdown to 0 (zero), the only option left is to enter a legit and genuine product key to activate Windows 7, or left the Windows 7 goes into non-genuine status, where user will face several annoyances such as black desktop background, repetitive notification messages to inform users that the Windows is illegal or counterfeited, and reminder to activate and witch to genuine Windows 7 on desktop or upon logon. When the initial 30-day activation-free grace period going to expire, users can rearm Windows 7 for additional 30 more days of activation grace period, for up to 3 times, effectively allowing Windows 7 to run legally for 120 days without a legit or genuine product key to activate the system. After installing Windows 7 on a non-OEM machine without a product key for activation, Windows 7 operating system will run in Initial Grace Period license status, which lasts 30 days as evaluation or trial period.

Windows 7 rearm forever 2.0