Missing Downloaded Files and Disk Write Error

[Allied87]

Hello!

Recently ran into an issue(s) where new and old games are not installing fully due to "Missing Downloaded Files" or "Disk Write Error." I have done the following to the T to absolutely no avail:

Repaired the library
Cleared the download cache
Run the program as administrator
Removed compatibility mode
Restarted Steam and computer
Checked HDD for errors (none found)
Verified integrity of game files for each of the games

I am truly out of ideas. The only thing I can think that could possibly fix this, is uninstalling then reinstalling Steam. I'm not that tech savvy, so hoping someone might have an idea.

Thank you for your time and possible solutions!
Thomas

[rawWwRrr]

External hard drive?

[Allied87]

Don't have one.

[Allied87]

In case anyone had Kaspersky, then switched (voluntarily or not), ULTRA AV is the culprit. Disabling active monitoring, and/or selecting "Gaming Mode" will allow for game updates and downloads. This can be done by going down to the bottom right of the task bar, hitting the arrow that shows hidden icons, then right-clicking on AV icon. As earlier, turn-off active monitoring, and it should work!

Good luck!

[Iceira]

Originally posted by Allied87:

In case anyone had Kaspersky, then switched (voluntarily or not), ULTRA AV is the culprit. Disabling active monitoring, and/or selecting "Gaming Mode" will allow for game updates and downloads. This can be done by going down to the bottom right of the task bar, hitting the arrow that shows hidden icons, then right-clicking on AV icon. As earlier, turn-off active monitoring, and it should work!

Good luck!

That's what steam call interference issue in the steam guide section.
and problem with this is we all have diffrent security app, so this is actual not a new thing. next month other app might do same thingy.

Maybe you should whitelist app then turn off Monitoring, or take it up with AV suppprt.