Quote: Originally Posted by mac0sX
Well, I just want to create a back up for my windows 7 installer. Ok, therefore, what i need is the .iso file of an installer when i am going to create a bootable dvd. Is this method applicable when creating a bootable dvd for operating system?
I'm confused as to what you have in hand.
If you have a Microsoft OS installation DVD, it's copyable.
If you wish to save a copy of a DVD to a hard drive, perhaps the best way is to use a utility to save an .iso of it. The .iso is an image of the DVD, preserving all of its contents in a single file.
If you have a pre-installed version of Windows 7, the PC manufacturer probably included a utility to make system restore disks. In my opinion, that's much less useful than having a Microsoft installation DVD, but it's better than nothing.
Windows 7 includes drive imaging software. You could back up your current installation with that. (You'd need a separate partiton on the hard drive, another internal hard drive, or an external drive.)
It may be possible to reconstitute an install disk from a running Windows 7 installation, but I can't recall reading of anyone having done that.