What flavor of Windows 7 is on my USB installer drive?

[InfoTime]

I have several USB thumb drives with different flavors Windows 7. Unfortunately they're not well labeled. Is there any way to know what version of Windows (i.e. Windows 7 Professional 32-bit) is on there short of installing the whole thing and finding out?

Here's a screenshot of what I see on the disk:

I've opened the autorun.inf in an effort to see what it is, but it's not much help.

Any ideas?

 

[xcodeSyn]

I've opened the autorun.inf in an effort to see what it is, but it's not much help.

Any ideas?

Actually both of your screenshot and autorun.inf cleraly indicate that it is a 64-bit installer with "bootmgr.efi" and "x64" information present and these two items won't appear in a 32-bit installer. To find out which version of Windows, just locate the "ei.cfg" file in the "sources" folder and open it with a text editor.

 

[InfoTime]

OK, cool. So this must be the 64-bit Ultimate edition of Windows from a retail channel and not Volume License agreement.

Bonus questions:
How can I tell what Service Pack is part of the install?
How can I know it's Windows 7 and not Windows 8 or Vista?

 

[xcodeSyn]

Bonus questions:
How can I tell what Service Pack is part of the install?
How can I know it's Windows 7 and not Windows 8 or Vista?

The info can be extracted from the "install.wim" file in "sources" folder as explained in this link. However, Windows 8.1 has a "install.esd" instead as discussed here. That should cover every edition from Vista to Windows 8.1.