It can also occur when you attempt to launch a game that needs an update.
Instructions in this article apply to the Steam client for Windows, macOS, and Linux.
Try the following solutions in this order:
Restart Steam.
power cycle your box.
Free up space on your hard drive.
One quick way to see all your biggest files is toscan your rig with a disk space analyzer tool.
Remove write protectionfrom the Steam installation folder.
Write protection prevents a computer from altering or adding files.
Find the Steam installation folder, right-click it, and remove theread-only attribute.
Run Steam as an administrator.
Running software with elevated rights gives it extra permissions and can fix odd problems like this one.
To fix this problem, go to the main Steam folder and open thesteamapps/commondirectory.
Verify the integrity of the game files.
In your Steam library, right-smack the game and selectProperties>Installed Files>Verify integrity of game files.
If Steam finds any corrupt files, it automatically replaces them.
Do not complete this step if your game uses a launcher that downloads additional updates.
wipe the Steam download cache.
If the Steam downloadcacheis corrupted, it can cause disk write errors.
To fix this problem, open Steam and navigate toSteam>prefs>Downloads>Clear Cache.
ChooseConfirmto erase the Steam cache and reboot the program.
Move Steam to a different drive.
In some cases, there may be a problem with the drive that prevents Steam from writing to it.
If you have multiple drives orpartitions, move the Steam installation folder there instead.
If this step resolves the Steam disk write error, check the original drive for errors.
Check the drive for errors.
If the problem persists or gets worse, you may need toreplace the hard drive.
Turn off the antivirus program or add exceptions.
Turn off the firewallor add exceptions.
If temporarily turning off the firewall fixes the problem, add an exception to the Windows firewall.
Contact Steam for help.
Steam’s technical support team can walk you through potential solutions for your specific problem.
it’s possible for you to also find help in theSteam Discussions forum.
If you still have trouble, you may need to reinstall Steam.
If you still have problems, cycle your unit, close background apps, and troubleshoot your internet connection.
if you hit the Steam Cloud error, your game files need to be synchronized.
Restart Steam and selectRetry Syncnext to thePlaybutton to force sync your Steam files.
