"Confirm a Game Out of Computer" – Clarification Needed

The phrase "confirm a game out of computer" isn't standard. Could you mean:

• Verify a game purchase? Check email receipt / order history (Steam, Epic, Microsoft Store, PSN, Nintendo eShop).
• Validate game files? Steam: Library → Right-click → Properties → Installed Files → Verify Integrity. Epic: Library → three dots → Verify.
• Exit / Close a game? Alt+F4 (PC), Home/PS/Xbox button → Close.
• Uninstall a game? Settings → Apps / Library → Uninstall.
• Stream / Capture gameplay? OBS, ShadowPlay, ReLive, console share button.

Reply with the exact goal and platform for a precise answer.