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ITsVISTA Tip 24: Run Vista for 120 Days without Activation Using SLMGR’s Rearm Function

TipsA previous tip pointed out the SLMGR.vbs script that you can use for license related tasks in Vista. The D’ Technology Weblog points out one of the things you can SLMGR for; extend use of Vista without activation for up to 120 days.

By default, Vista will run fully for 30 days without activation, after that, it will go into ‘Reduced Functionality Mode’, which basically gives you enough resources to be able to activate the OS. SLMGR has a function called Rearm that allows you to extend your ‘evaluation period’ by 30 days. The rearm function is said to work three times, which would extend your non-activated use to 120 days total.

So how do you use it? It’s simple, just click on your Start menu, and in the search box type cmd and press CTRL+SHIFT+ENTER (to run the command prompt with elevated privileges).
Run Command Prompt

In the command prompt window, type slmgr -rearm and hit Enter.
slmgr -rearm

Wait for about 10 seconds, and you’ll get a confirmaton window that the command completed successfully, and that a reboot is required to complete the task.
Completed Successfully

Note that you should be able to just type slmgr.vbs -rearm in the search box, followed by CTRL+SHIFT+ENTER, but both of the machines I tried that on told me that it failed because it needed elevated privileges, even though the CTRL+SHIFT+ENTER provided this.
Search Box No Go

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