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

Or, even worse:

Turn off antivirus > Run as Admin > Limit RAM usage (2GB) > Use an NTFS drive. gta v isdone.dll and unarc.dll error fix

If you are seeing isdone.dll or unarc.dll errors during the GTA V setup (usually from a FitGirl repack or a large ISO file), These errors are almost always caused by system resource conflicts. Or, even worse: Turn off antivirus > Run