windows-activator 7, 8, 8.1, 10 Windows-activated.net/ all and office. Activate Windows 7 Without a Key Windows 7 must be activated in order to be used beyond 30 days. You can use the “rearm” console command to renew your activation grace period. It should be noted that the rearm command can only be used up to 3 times, extending your activation period to a maximum of 120 days. 1 Hit ⊞ Win and enter “Cmd” into the search bar. The Command Prompt program will appear in the search results. 2 Right click the Command Prompt listing and select “Run as Administrator”. This will launch the command prompt application with administrator privileges. 3 Enter “slmgr -rearm” into the command line and hit ↵ Enter . A script will run and after a few moments you will be prompted to restart your computer. 4 Restart your computer. 5 Check your activation status. ...