If you are having troubles updating a game or installing a game on Steam due to a disk write error now, try the following solutions out. This solution is provided by a Reddit user and many users rate it useful.Go to the location of Steam (default location is C:/program files/Steam). Head to the Compatibility tab in properties and make sure "run this program as an administrator" is ticked. In short, he just solved this issue by going into Program Files (x86)/Steam/steamapps/common and simply deleting a file titled Fallout that was 0KB in size.Please restart Steam and then repeat the downloading/upgrading.If the Steam disk write error persists, restart your computer then.Note that if a lot of errors are found, your drive looks like a failing disk, which may be an issue with the downloading/upgrading.In this case, it is better for you to back up data on the drive as soon as possible and then replace the drive.Steam is a popular social gaming website where you can buy, play, and discuss games.
Note that if there are errors found, they will be marked with red color.Thus, it is necessary to transfer important data to a safe place.Review the changes to be made or change the copy options according to your preference.Select a target disk to save all data on the source disk.Be aware that all data on the selected target disk will be cleaned for a successful clone.On the contrary, if no bad sector is found, all will be marked with green.