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Friday, March 16, 2007

How to extend Windows Vista trial by another 1year

Here are simple steps to extend your Windows Vista Trial period by another full 1 year!!

  • Run the command prompt as an administrator, you can do this by starting cmd and pressing CTRL + SHIFT + ENTER.
  • Type “slmgr -rearm” and hit return. The activation period will be reset to another 30 days after a reboot.
  • To check if this procedure was successful you can type “slmgr -xpr” at the same command prompt after the reboot.
  • Open the registry with “regedit” and navigate to the key HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows NT \ CurrentVersion \ SL
  • Right-click the SkipRearm key and choose to modify it.
  • Change the value to 1 and close regedit again.
  • Start the command prompt as an administrator again and type “slmgr -rearm” again.
  • Reboot the pc again and the Vista activation period was again reset to another 30 days.

Note that this can be done eight times.

Once you have successfully completed the above steps, your Windows Vista activation period will have another to 360 days.


  1. Anonymous said,

    it worked for a little why, but faggot gates somehow canceled my Vista trial, what a fag.

    on 4/02/2007 3:36 AM

  2. Anonymous said,

    Doesn't work anymore... SP1 probably knocked it out. Will try pre-SP1 after fresh install without any updates and post results.

    on 7/08/2008 7:32 PM

  3. Anonymous said,

    i tried this vista extension ,but something worked....initially had9 days remaining ,tried this and had 3 days remaining,,,,,after it said 2 days remaining tried again and it says 3 days remaining...so it only extends by 3 days.......is there another way to extend for longer..please help....

    on 8/25/2009 8:25 AM