"An error occurred while unpacking: archive corrupted! Unarc.dll returned an error code: 7." OR "ISDone.dll: An error occurred while unpacking!"
Download and install the package.
Search for "Windows Features" → Turn off "Windows Defender Application Guard" if enabled. Reboot. isdonedll error unarcdll error7 best
Under the hood, unarc.dll (Unarc compression library) fails to write data because: "An error occurred while unpacking: archive corrupted