

You can extend the trial period only 1 time ( Remaining App rearm count: 1). In this example, the retail trial edition of Office is installed on the computer ( Description: Office 19, RETAIL Grace channel). For example, for Office 2019, you need to find the line: Name: Office 19, Office19ProPlus2019xxx Find the section in the list that refers to MS Office. This command will display information about all Microsoft products on your computer.

You can check the current CMID of the computer using the ospp.vbs script – see the KMS activation FAQ).


You can run this command up to three (3) times before the trial expires. Thus, you rearm your Office copy and extend the free trial to 30 days. You can reset the free trial period in retail editions (Home, Personal, University, etc.) only once. Please note that this license rearm method is only suitable for corporate versions of Office and Office 365 ( Office 2016 vs Office 365: What’s the difference) licensed under the Volume Licensing (Standard, ProPlus, and Enterprise editions).
