A: Your hard drive may have bad sectors. Run chkdsk /f in Command Prompt as Administrator. Alternatively, your antivirus is silently quarantining it during the repair process. Disable real-time protection before repairing.
If Windows or your game launcher (like or Battle.net ) claims the file is missing or causing a crash, it is rarely because the file has magically vanished. The root causes usually fall into one of these categories: s2-sp64-ship.exe download
Wait for the scan to complete, then restart your PC. A: Your hard drive may have bad sectors