.NET 4.8.1 app doesn't load because 4.8.1 is not in the registry key for SKUs

Question

Web Application configured for Framework version but the Windows 2022 Azure version fails to have the 4.8.1 SKU under the even after 4.8.1 is installed. A Data Center version has it. What is the solution besides Windows 2022 Data Center Addition or Use AWS infrastructure instead?

Answer 1

Should Read:

We have a Web Application configured for Framework version but the Windows 2022 Azure version fails to have the 4.8.1 SKU under the HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft.NETFramework\v4.0.30319\SKUs key even after 4.8.1 is re-installed. A Data Center version has it. What is the solution besides Windows 2022 Data Center Addition or Use AWS infrastructure instead?

Should have this SKU after 4.8.1 is loaded.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft.NETFramework\v4.0.30319\SKUs.NETFramework,Version=v4.8.1

Also thinking :

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full\1033

Version should point at 4.8.1 instead of 4.8.09037 but that could be because I looked up the above on a Windows 11 workstation to document this issue. Windows 2022 server (Azure) also did not have this version updated after .NET 4.8.1 was reloaded.

Answer 2

See below update - this update gave a page error so re-posted the update comment...