If you see the 0x800F0922 .NET Framework installation error while updating or installing .NET Framework 3.5 or 4,8, use these working fixes.

.NET Framework 3.5 Offline Installer. This program created based on Windows 10 version 1909, OS Build 18363.418.

Missing .NET Framework 3.5 Targeting Pack Nuget Package #1188 Open matteo-prosperi opened on Apr 2, 2020 ...

Microsoft says the Windows 11 KB5012643 optional update is causing issues in two .NET Framework 3.5 components.

Microsoft has warned Windows 11 users that they might experience issues launching and using some .NET Framework 3.5 applications.