How to Use Windows 7 Without Activation. Most of you might be aware of the fact that it is possible to use Windows 7 and Vista for 120 days without activation.
This is actually possible using the slmgr -rearm command which will extend the grace period from 30 days to 120 days. However, in this post I will show you a small trick using which it is possible to use Windows 7 without activation for approximately an year! Here is a way to do that. Step-1: Go to “Start Menu -> All Programs -> Accessories“. Right click on the “Command Prompt” and select “Run as Administrator“. Free Product Keys, Unlock Codes. Anti-Spywares. Web Security Portal - Powered By Web Security Team.