ISdone.dll error 1,7,12,14 Perfect Solution by self experience

Hello guys, i'm gonna show you how really fix isdone.dll error and tell you the reasons why its occurs during installation of a game.
You'll find sevaral videos on youtube but i don't think it worked for you as like you once i faced this problem and got sicked of it, i searched everywhere but no perfect fix i've found,and then after reseach and i fixed this problem No Worries, you can easily solve it following my guide. In This Guide I will show you Step-by-Step how to fix the errors. Following my guide you solve the Error for sure. but i'm not giving you 100% surity, i told you every possible reasons and fixes, i'm 90% sure that it will help you. Fix ISdone.dll error code 1, 7, 12, 14 any.