Convert Eval to Full Version 

Open Powershell as administrator 

Run following command 

Dism /online /get-currentedition 

Dism /online /get-targeteditions 

DISM /Online /Set-Edition:ServerStandard /ProductKey:xxxxx-xxxxx-xxxxx-xxxxx-xxxxx /AcceptEula 

DISM /Online /Set-Edition:ServerDatacenter /ProductKey:xxxxx-xxxxx-xxxxx-xxxxx-xxxxx /AcceptEula 

Just overcame this issue. Here are the notes to get an MAK key working on an evaluation ISO. 

Server 2019 Activation Error: Run “slui.exe 0x2a 0xC004F069” to display the error text 

This can be worked around by using two DISM commands. 

Open an elevated command prompt, and type (or copy) DISM.exe /Online /Get-TargetEditions 

Then enter DISM /online /Set-Edition:ServerStandard /ProductKey:ENTER-YOUR-SERIAL-FROM-TABLE /AcceptEula (use key from below table if this is a MAK/Volume license key) 

It may get stuck on the 10% mark for a few 

Use one of the below keys first: 

Windows Server 2019 

Product GVLK 

Windows Server 2019 Datacenter WMDGN-G9PQG-XVVXX-R3X43-63DFG 

Windows Server 2019 Standard N69G4-B89J2-4G8F4-WWYCC-J464C 

Windows Server 2019 Essentials WVDHN-86M7X-466P6-VHXV7-YY726 

Windows Server 2019 Azure Core FDNH6-VW9RW-BXPJ7-4XTYG-239TB 

Windows Server 2019 Datacenter Semi-Annual Channel (v.1809) 6NMRW-2C8FM-D24W7-TQWMY-CWH2D 

Windows Server 2019 Standard Semi-Annual Channel (v.1809) N2KJX-J94YW-TQVFB-DG9YT-724CC 

Windows Server 2019 ARM64 GRFBW-QNDC4-6QBHG-CCK3B-2PR88 

Windows Server 2016 

Product GVLK 

Windows Server 2016 Standard Semi-Annual Channel (v.1803) PTXN8-JFHJM-4WC78-MPCBR-9W4KR 

Windows Server 2016 Datacenter Semi-Annual Channel (v.1803) 2HXDN-KRXHB-GPYC7-YCKFJ-7FVDG 

Windows Server 2016 Datacenter Semi-Annual Channel (v.1709) 6Y6KB-N82V8-D8CQV-23MJW-BWTG6 

Windows Server 2016 Standard Semi-Annual Channel (v.1709) DPCNP-XQFKJ-BJF7R-FRC8D-GF6G4 

Windows Server 2016 ARM64 K9FYF-G6NCK-73M32-XMVPY-F9DRR 

Windows Server 2016 Datacenter CB7KF-BWN84-R7R2Y-793K2-8XDDG 

Windows Server 2016 Standard WC2BQ-8NRM3-FDDYY-2BFGV-KHKQY 

Windows Server 2016 Essentials JCKRF-N37P4-C2D82-9YXRT-4M63B 

Windows Server 2016 Cloud Storage QN4C6-GBJD2-FB422-GHWJK-GJG2R 

Windows Server 2016 Azure Core VP34G-4NPPG-79JTQ-864T4-R3MQX 

WNCYY-GFBH2-M4WTT-XQ2FP-PG2K9 

Finally reboot and enter your purchased key: 

– Enter key via GUI 

or 

– slmgr.vbs /ipk <your product key> 

– slmgr.vbs /ato