Gta V Isdone.dll And Unarc.dll Error Fix -

Turn off antivirus > Run as Admin > Limit RAM usage (2GB) > Use an NTFS drive.

There is nothing more frustrating than waiting hours for Grand Theft Auto V to download, only to be slapped with a cryptic error box halfway through the installation. You step away for a snack, come back, and see it: gta v isdone.dll and unarc.dll error fix

Or, even worse: