Do you like how Windows 7 works? It’s way better than Vista right? I think we all agree at that point… Well today I have something that will prolong your joy of using Windows 7 for free from default 30 days, to amazing 120 days! I don’t talk about RC or Beta here, only final versions of Win7.

As you already know, Microsoft allows anyone to install and use any version of Windows 7 for 30 days without having to enter an activation key. There are no strings attached, and the operating system’s performance is not degraded or defaced during the trial.

But fortunately for us, the 30-day grace period can be extended up to three additional times – to a total of 120 days – using a Microsoft-supplied utility called the Software License Manager (slmgr). This tool conveniently ships with Windows 7 which means you already have it on your copy of Win7.

First let me explain how this whole process works:

If you install Windows 7 and don’t enter an installation key, the 30-day activation clock starts. To see how many days you have left, click ‘Start’, right-click ‘Computer’, and choose ‘Properties’. At the bottom of the dialog under ‘Windows Activation’, you’ll see the number of days left in your trial period.

When your remaining days come near to zero, you can apply the following steps to extend Windows 7 trial period and make it last additional 30 days.

So how is this 120 days? Well you can repeat the process three times at maximum. (When another 30 days end, you repeat, and then again after those additional days end, you repeat this last time) After that, you will need to enter the activation key which you, hopefuly will, after deciding which version fits you.
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