If you cannot provide licensing in the windows operating system for windows vds/vps services you have purchased from different companies, you can use the license codes below. Run 'Windows PowerShell' as administrator from your Windows VDS server. After running it, you can license using the following commands.
Run Windows PowerShell as administrator.
#2012 R2 server
DISM /online /Get-CurrentEdition
DISM /Online /Set-Edition:ServerDatacenter /ProductKey:W3GGN-FT8W3-Y4M27-J84CP-Q3VJ9 /AcceptEula
#2016 server
DISM /online /Get-CurrentEdition
DISM /Online /Set-Edition:ServerDatacenter /ProductKey:CB7KF-BWN84-R7R2Y-793K2-8XDDG /AcceptEula
#2019 server
DISM /online /Get-CurrentEdition
DISM /Online /Set-Edition:ServerDatacenter /ProductKey:WMDGN-G9PQG-XVVXX-R3X43-63DFG /AcceptEula
OPERATİNG SYSTEM PRODUCT KEY
Windows Server 2008 Standard TM24T-X9RMF-VWXK6-X8JC9-BFGM2
Windows Server 2008 Enterprise YQGMW-MPWTJ-34KDK-48M3W-X4Q6V
Windows Server 2008 Datacenter 7M67G-PC374-GR742-YH8V4-TCBY3
Windows Server 2008 R2 Standard YC6KT-GKW9T-YTKYR-T4X34-R7VHC
Windows Server 2008 R2 Enterprise 489J6-VHDMP-X63PK-3K798-CPX3Y
Windows Server 2008 R2 Datacenter 74YFP-3QFB3-KQT8W-PMXWJ-7M648
Windows Server 2012 Standard XC9B7-NBPP2-83J2H-RHMBY-92BT4
Windows Server 2012 Datacenter 48HP8-DN98B-MYWDG-T2DCC-8W83P
Windows Server 2012 R2 Standard D2N9P-3P6X9-2R39C-7RTCD-MDVJX
Windows Server 2012 R2 Datacenter W3GGN-FT8W3-Y4M27-J84CP-Q3VJ9
Windows 8.1 Professional GCRJD-8NW9H-F2CDX-CCM8D-9D6T9
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 2019 Standard N69G4-B89J2-4G8F4-WWYCC-J464C
Windows Server 2019 Datacenter WMDGN-G9PQG-XVVXX-R3X43-63DFG