my friend just bought an ssd nvme from samsung , we installed the windows on this new drive and now he have a lot of trouble with some dll errors like mfplat.dll is missng , 
we used a famous website that provide the missing dll and added the mfplat one , still cant start obs error code (oxooooo7b ) , then i gave him my entire dll library from my computer ( we have the same cpu same motherboard and same os win10 pro n ) then a new error apeared ( Procedure entry point not found in dynamic link library ) we tried : 
Repair Corrupt System Files. 
Run The Program As Administrator. 
Reinstall your application. 
Update . NET Framework. 
Update DLL. 
Update DirectX. 
Reinstall the affected application. 
Uninstall and then reinstall the Microsoft Visual C++ Redistributable. 
sfc /scannow 
Dism /Online /Cleanup-Image /Restorehealth 
switch to win 11 
use a older win 10 build