ISDone.dll Unarc.dll error code -7 typically occur during the installation of large games or software, usually signaling an issue with file decompression corrupted archives
Turn off Real-time protection temporarily while the installer runs. Do not browse the web during this time. isdonedll error unarcdll error7 best
Even if you prefer direct downloads, grab the .torrent file, load it into qBittorrent, and point it to the folder where your direct download is saved. The client will re-check the files and download only the broken parts. This alone kills 90% of ISDone/Unarc errors. ISDone