During installation Dark Souls 3 error appears ISDone.dll.
ISDone.Dll at installation in Dark Souls 3 there because lack elements of the operating system Windows.
To solve this problem you need install PC SpeedUp Pro“, and check out all the. Dll files. If everything is fine to manually install the Package WinSDK_web \ Mirror, when you update them rerun the Dark Souls 3 and ISDone. Dll error You will not disturb.
Installer he scans your OS windows and update all missing elements.