Update Failed - Disk Write Error

[Cointense]

Don't see any posts on this. After the recent update, couldn't launch Hogwarts Legacy.

Verified the game files, which prompted a new download. But at the end of the download I'm getting a Disk Write Error and it says the update failed.

Uninstalled the game and re-downloaded. Downloaded almost all of the game files with no issues, but at the last moment I still keep getting Disk Write Error, and the game cannot be installed or launched.

Downloaded other Steam games to play with no such Disk Write Error issues.

Uninstalled and reinstalled Hogwarts Legacy, as well as deleted the files under Steamapps > Common > Hogwarts Legacy. But no improvement.

As a last resort, uninstalled all of my games and all of Steam.

Reinstalled Steam, and re-downloaded Hogwarts Legacy. Still getting the same Disk Write Error. Other games re-downloaded have no such issues.

Literally unplayable after this patch. If anyone is facing similar problems, or has a fix please comment.

[Cointense]

Originally posted by Areison:

This may help others. Disabling my antivirus fixed the disk write error and allows the files to be validated. You can also add an exception to the scanner. Game runs fine. For now anyway.

Originally posted by Captain:

I can confirm ! Disabling my antivirus allowed steam to verify and dowload the missing file. I can now launch the game properly !

Originally posted by Diggarrow:

Confirming that disabling my avast has allowed the steam to update the files as well.

Can confirm this worked in my case. Thank you.
Switching off the antivirus allowed me to download, install, and launch the game with no issues.
Once I switch the antivirus back on, launching the game immediately causes it to crash to desktop.
So the current solution for my case is to add the game files as exception in the antivirus.
Not sure what in the game files is silently triggering the antivirus (no notifications/ pop ups), but hope this gets fixed.

[Stojk]

Originally posted by dobrowol:

Originally posted by Diggarrow:

Confirming that disabling my avast has allowed the steam to update the files as well.

I did the same here as well but sadly when I resumed my session the following day...the game crashes/freezes to desktop.

I think you need to disable every time the game loads else the shaders loading crashes the game for what I assume is the same issue that causes the disk write error, then breaks something causing the same issue all over again. Same issue happens in Lies of P which uses the same shader load at launch thing (unreal engine thing vs avast issue)