How to Fix a Steam Disk Write Error
A “Disk Write Error” while downloading or updating a game in Steam has several possible causes. Luckily, a majority of them aren’t indicative of a serious problem with your PC. In most cases, a disk write error occurs because of a permissions problem or file corruption and can be easily resolved.
Restart Steam and Your PCCheck Write Permissions Always Run Steam as Administrator Change the Permissions for Your UserClear Download CacheRepair Library FolderChange Your Download Server
It’s a cliché for a reason — turning it off and back on again works. If you suddenly experience a disk write error, try restarting Steam. Right-click the Steam icon in the system tray (notification area) on your taskbar and click “Exit.” You can also click Steam > Exit in the Steam application window.
If restarting Steam doesn’t work, restart your PC. Restarting your computer reinitializes hardware drivers, ends all of the running programs, and clears the memory. If the disk write error was caused by an error with Windows (or any other operating system,) there is a good chance restarting your computer will fix it.
RELATED: Why Does Rebooting a Computer Fix So Many Problems?
A team disk write error could also be due to a permissions issue. If a Steam library folder has been set to read-only, or the user account you run Steam from doesn’t have write permissions for the library folder, Steam can experience a disk write error. Let’s check and see if that is the problem.
First, close Steam if it is running. Then, right-click the icon you normally use to launch Steam and click “Run as Administrator.”
Try the download again. If it works, you have a permissions problem. If that didn’t solve the issue, you can skip ahead to one of the other sections — the
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