How do I check what type of Windows is on DVD disc?

Perfecto

Distinguished
Jul 30, 2014
3
0
18,510
I've got a DVD with no label on it. It contains Windows installer but I don't want to install it just need to know what Windows version and if it is x32 or x64?
It shows that dvd is occupied by 3 199 123 456 b (2,97GB).

This problem occurs quite often, as I work in a big IT department. Do you know any software I can use to detect Windows version from installation files?
 
Examine the root and open the autorun.inf file with notepad.
The 64 bit version shows:[AutoRun.Amd64]
open=setup.exe
icon=setup.exe,0

[AutoRun]
open=sources\sperr32.exe x64
icon=sources\sperr32.exe,0

The 32 bit version shows:[Autorun]
open=setup.exe
icon=setup.exe,0