How to Re-Activate the Windows Trial

How to Re-Activate the Windows Trial

Testing an edition of Windows? 30-day activation window expired? Not all of us have the hundreds of pounds you would need to buy license keys for our testing environments. Neither do we all have access to student or business key programs from Microsoft. Luckily there’s a simple way to re-activate Windows for those of us who just want to test things!

How to reset the activation countdown

To re-activate the trial period in Windows do either of the following:

  1. For Windows 8 and newer
  • To start with, press the Windows Key + X simultaneously
  • Now, click “Command Prompt (admin)”
  • Finally, In the console type “slmgr /rearm” and hit enter.
  1. Any edition of Windows
  • To start with, click the Start button or Windows Key
  • Now, type “cmd”
  • Next, right click on “Command Prompt” and click “Run as Administrator”
  • Finally, In the console type “slmgr /rearm” and hit enter.

The command “slmgr /rearm” will reset the 30-day timer and can be used up to 3 times for a maximum of 120 days grace period before entering a product key is required as many Windows features are disabled.

Notes: Total activation time can vary between Windows versions. Desktop versions are all 120 days as far as I am aware however Server editions can vary.

What is a Windows trial?

Most, if not all Microsoft software has a trial period which can you can use for evaluation and testing. This period is incredibly useful in many scenarios from testing software compatibility to education environments such as “labs”.

It’s worth remembering that Windows trials are not intended for what are called “production” environments. This means you shouldn’t use trial software in an active (real world) environment for anything other than testing. There are many different licensing options for Windows designed for academic to home or even commercial use. Legally you should actiate Windows using a legitimate key but for testing, trials are perfect.

Owen Nelson

Owen Nelson

IT Systems Administrator from Northamptonshire, UK. Always on the lookout for ways to make things faster and more secure - and I enjoy getting through a fair bit of Tea along the way.

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