It seems you're asking for a detailed essay on why Sniper Elite 5 might "won't launch" (error 39 or general launch failure), but the phrasing "Won 39-t Launch" appears to be a typo or shorthand for or simply "won't launch" — a common technical issue on PC (Steam, Epic, Game Pass) and consoles.
Windows Update replaced the GPU driver with a generic Microsoft Basic Display Adapter driver. The game attempts to call DirectX 12 functions, but the driver lacks them, triggering an implicit Error 39.
Reinstall the official GPU driver via DDU (as in Step 3) and disable automatic driver updates through Group Policy.
