Activate windows using powershell

Question

I am after a PowerShell script which can check for OS ,check channel for example if it is on MAK then replace it with a KMS channel and then update windows with a generic KMS key and then activate windows . From command prompt I achieve it
using
slmgr /dlv - >to check for channel, If its set to MAK then replace it to KMS using
slmgr /ipk "KMS generic key as per OS Version "
and then activate windows using
slmgr /ato
Faizan

Answer 1

Hi Faizan,
Please note you can also use the cmd "slmgr" in Windows Powershell.
If you want to activate Windows via powershell script, please check the WMI class SoftwareLicensingService.
The script below can install the appropriate KMS client key for the detected OS:
$OSversion = (Get-WmiObject -class Win32_OperatingSystem).Caption
switch -Regex ($OSversion) {
'Windows 8.1 Professional N' {$key = 'HMCNV-VVBFX-7HMBH-CTY9B-B4FXY';break}
'Windows 8.1 Professional' {$key = 'GCRJD-8NW9H-F2CDX-CCM8D-9D6T9';break}
'Windows 8.1 Enterprise N' {$key = 'TT4HM-HN7YT-62K67-RGRQJ-JFFXW';break}
'Windows 8.1 Enterprise' {$key = 'MHF9N-XY6XB-WVXMC-BTDCT-MKKG7';break}
'Windows Server 2012 R2 Standard' {$key = 'D2N9P-3P6X9-2R39C-7RTCD-MDVJX';break}
'Windows Server 2012 R2 Datacenter' {$key = 'W3GGN-FT8W3-Y4M27-J84CP-Q3VJ9';break}
$KMSservice = Get-WMIObject -query "select * from SoftwareLicensingService"
Write-Debug 'Activating Windows.'
$null = $KMSservice.InstallProductKey($key)
$null = $KMSservice.RefreshLicenseStatus()
Refer to:
Auto-activate a non-domain joined Windows OS using Powershell and a domain KMS host
Activating Windows with PowerShell
If there is anything else regarding this issue, please feel free to post back.
Best Regards,
Anna Wang
TechNet Community Support
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