Archive by category "Windows Server 2019"

Windows task scheduler: The operator or administrator has refused the request

After implementing scheduled tasks on server 2016 and 2019 we have sometimes the following annoying message. Trying literally everything. Finally we did solve this by adding an extra checkmark in the “settings” tab.

Check the box:
“Run task as soon as possible after a scheduled start is missed.”

Running Powershell scripts with the task scheduler

Program/script: powershell.exe
Added arguments: -ExecutionPolicy Unrestricted -file “c:\scripts\somescript.ps1”

Hyper-v AVMA Key and related stuff

Just sharing some notes.
What is Microsoft AVMA? “AVMA lets you install virtual machines on a properly activated Windows server without having to manage product keys for each individual virtual machine, even in disconnected environments. AVMA binds the virtual machine activation to the licensed virtualization server and activates the virtual machine when it starts up. AVMA also provides real-time reporting on usage and historical data on the license state of the virtual machine. Reporting and tracking data is available on the virtualization server.”

When the AVMA key is not installed, your virtual systems will not activate.

Import Windows license key:


In our situation we need to report to our KMS server:
slmgr /SKMS

Activate Windows:

slmgr /ATO

Check the licensed status of your Windows Host.

slmgr /DLV or DLI

Or with PowerShell for checking your full scvmm managed environment:

The following AVMA keys can be used for Windows Server 2019.
Datacenter H3RNG-8C32Q-Q8FRX-6TDXV-WMBMW
Standard TNK62-RXVTB-4P47B-2D623-4GF74
Essentials 2CTP7-NHT64-BP62M-FV6GG-HFV28

The following AVMA keys can be used for Windows Server, version 1809.
Datacenter H3RNG-8C32Q-Q8FRX-6TDXV-WMBMW
Standard TNK62-RXVTB-4P47B-2D623-4GF74

The following AVMA keys can be used for Windows Server 2012 R2.
Datacenter Y4TGP-NPTV9-HTC2H-7MGQ3-DV4TW
Essentials K2XGM-NMBT3-2R6Q8-WF2FK-P36R2

The following AVMA keys can be used for Windows Server 2016.
Standard C3RCX-M6NRP-6CXC9-TW2F2-4RHYD
Essentials B4YNW-62DX9-W8V6M-82649-MHBKQ