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How to extend a Windows Server Demo license

 We know that the Windows operating system is a commercial product and works with an original license. Of course, it is possible to use a cracked operating system, but considering the possibility of updates and viruses, it is always our choice of original licensed Windows. Assuming that Windows Server licenses are very costly, there is a certain time for trial or pre-purchase use. In this Article we will describe the way to experiment and extend the demo license up to 180 days for pre-license use.

With the slmgr command, you can perform the license operations of your windows from the command line (cmd). For this, you can run the command line as an administrator and use the following commands.

  • To view license information: slmgr.vbs -dli
  • To see detailed license information: slmgr.vbs -dlv
  • To delete installed product key: slmgr.vbs -upk
  • To install the product key: slmgr.vbs -ipk xxxxx-xxxxx-xxxxx-xxxxx-xxxxx
  • To  enable product key: slmgr.vbs -ato
  • If your license is not perpetual it shows the remaining time: slmgr.vbs -xpr
  • If you are using a trial license, it will extend the duration by 30 days, can be done 3 times in total: slmgr.vbs -rearm

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