Steam keeps throwing a disk write error on one game

Had this a while back, these are what usually sort it, roughly easiest first: 1. clear the download cache in Steam settings and restart Steam 2. look in steamapps\common\ in that game's folder for any 0 KB files and delete them, a stuck empty file is a common cause 3. make sure the folder isn't set to read only and your antivirus isn't blocking Steam from writing there 4. Settings > Storage, pick the drive and use repair folder 5. verify integrity of game files after all that If it's only ever that one game and only on one drive, try moving it to another drive. If it follows the drive, the drive itself might be on its way out.