Error code

Steam Steam Disk Write Error

STEAMSteam Disk Write Error
Game/Platform Error· An error code shown by a game or gaming platform/launcher.

What it means

Steam cannot write game data to disk during installation or an update — displays "An error occurred while installing/updating [game]: (disk write error)"..

How to fix it

  1. Run Steam as administrator.
  2. Clear the download cache in Steam > Settings > Downloads.
  3. Verify integrity of game files.
  4. Check drive for errors using chkdsk.
  5. Remove write-protection on the Steam library folder (diskpart then attributes disk clear readonly).
  6. Move the Steam library to a different drive.
  7. Reinstall Steam.

Not affiliated with Steam. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.