[Solved]Prototype 1 Instalation

Hello,
I have a problem with instalation. During instalation I get mesage to insert PROTOTYPE_2 Disk but the hole instalation is in 1 folder. I used to play this game 2 years ago and I knew how to instal it but I totaly forgot what I need to do (tho Im prety sure it got something to do with merging/spleating ISO files) So if anyone have any ideas please share it with me.
Answer #1
the installation file of Prototype 1 is 7.3GB
try to check it if it is 7.3GB
if not then you need to merge the files
Answer #2
yeap 7,43Gb. Files are all ok and its working version because I used to play from her before.
Answer #3
Found solution. Ty for help anyway.
Please don't double-post, use the edit button instead. Members are allowed to double or triple post only if their previous post has exceeded the maximum characters limit.
bluerayn
Answer #4
Found solution. Ty for help anyway.
share the solution for future purposes thanks in advance