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How to Extend Free Usage (Activation Grace Period) of Windows 7 to 120 Days
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It should be interesting and sometimes even useful to know that Windows 7 OS can be used genuine and legally without any product key for free usage of 30 days as evaluation period.
During the 30-day activation free grace period, user does not need to activate Windows 7, and can use Windows 7 of any edition in full functionality. However, Windows 7 product activation function will keep reminding user regarding how many days left to input a product key and activate the system in order to continue using the operating system beyond 30 days.
In reality, Windows 7 also equip with a secret ‘rearm’ key in order to reset the free 30-day evaluation period limitation, which allows user to extend the activation-free usage or evaluation expiry date of Windows 7 for another 30 days legally.
Follow these steps to reset and extend activation grace period from 30 days to 120 days in Windows 7:
- Install Windows 7 without any product activation key.
- After installation is completed, use the Windows 7 for 30 days and wait for the remaining days left to activate.
- When the activation grace period (or evaluation trial period) is almost expired or ended, log on to Windows 7, and open a Command Prompt and type Cmd in Start Search and hit Enter).
- Type any of the following commands into the command prompt, and then hit Enter:
sysprep /generalize
slmgr.vbs –rearm
rundll32 slc.dll,SLReArmWindows
slmgr /rearm
- Reboot Windows 7 to enjoy another 30 days of free usage without worrying about activation.
- When the activation grace period countdown timer almost runs down to 0 again, repeat the trick to enjoy another 30 days of Windows 7 for free. General user can run the rearm command for maximum of 3 times.