Hello,
This appears to be normal and does not indicate Windows corruption.
The C:\Program Files (x86)\Windows Kits folder belongs to optional developer components such as the Windows SDK, WDK, or Visual Studio. It is not required for normal Windows use, games, or regular applications. If the SDK component was updated or removed, the folder may disappear.
You can check Settings > Apps > Installed apps and search for “Windows SDK” or “Windows Driver Kit”. Official information: https://learn.microsoft.com/windows/apps/windows-sdk/
C:\Program Files\Microsoft GameInput is also a normal location for the newer GameInput component, including systems where the folder contains both x64 and x86 subfolders. Please do not manually move or delete it. Official information: https://learn.microsoft.com/gaming/gdk/docs/features/common/input/overviews/input-nuget
Microsoft’s KB5101684 release notes do not currently mention removing Windows Kits or changing the GameInput path, so it cannot be confirmed that the update directly caused this. Official release notes: https://support.microsoft.com/help/5101684
Since Windows Update, games, and applications are working normally, no repair or reinstall is needed.