If using Steam, right-click the game > Properties > Installed Files > Verify integrity of game files .
Ensure you have the latest NVIDIA or AMD drivers installed. UNCHARTEDLegacyThievesCollection.part15.rar
If you are seeing a "Checksum Error" or "Corrupt Archive" message for this specific part, you can try the following steps to fix it without redownloading the entire set: 🛠️ Common Fixes for Archive Errors If using Steam, right-click the game > Properties
Sometimes WinRAR throws errors that 7-Zip can bypass. Try right-clicking the .part01.rar file and selecting "Extract files..." using 7-Zip. If using Steam