If you have the time I'd suggest a completely different but IMO a very valuable approach.
This will take longer the first time and you'll have a bit of a learning curve but you'll now have an almost infallable system for recovering almost any Dead computer -- also you'll have full internet access (to get drivers etc) and you can have any applications you like on it.
Go over to W8 Forums and create a "Windows to Go" system on a USB drive (you can do it on a USB stick but it's a little bit more fiddly). Tutorial is in the Forum. Shouldn't take you more than around 60 mins and then you've got a really handy useful recovery tool you can use indefinitely on ANY computer. Windows 8 To Go - Setup on a USB Flash Drive or USB Disk - Windows 8 Forums
For flexibility I'd choose the 32 bit version for this application -- that way you can run it on any machine not just those that are 64 bit enabled - unless you won't be using 32 bit computers any more). This is a FULLY BOOTABLE WINDOWS system THAT RUNS FROM THE EXTERNAL USB DRIVE OR STICK. IT'S NOT the INSTALL SYSTEM BUT A FULLY FUNCTIONING WINDOWS SYSTEM with full READ/WRITE access on all LOCAL and Network drives.
Install Partition manager (or partition Wizard on it), backup software and any other app you think you want. You can always add more later.
On the USB drive have 2 partitions -- 40 GB OS and the rest as data ("C" and "D")
Now the nice thing about W8 CP which is why I suggest this route is that it has a BUILT IN .ISO mounter -- just click from Windows explorer - or right mouse click==>Mount. (Perhaps you see where I'm going with this). No more burning ISO's to DVD's or CD's needed. !!!
Boot this up on your CURRENT PC (set the BIOS to enable USB drive as first in boot order) and take the image of the Original (Windows 7) OS and copy it to the external USB. (The external USB is now running Windows so it's OS drive will be C. All the other drive letters will have changed but use Control panel==> admin tools to see what's what.
When you've copied the OS delete the partition and restore the OS back to where you want it.
On restore if you've also got a small 100 MB reserved partition restore that to and set it to PRIMARY,ACTIVE.
If there is only ONE partition to restore set it to PRIMARY ACTIVE.
Shut down the w8 system, unplug the USB and boot.
(I use Acronis as the imaging / backup program but there are other FREE one's you can try).
This sounds a bit complex - but once you've done it you've got an incredibly powerful portable and flexible tool that works on nearly every computer you are likely to want to use it on. I've even got MS Office 2010 and Photoshop CS5.5 running on this type of system.
I agree the other solutions presented are probably easier initially -- although using WINPE IMO is more complex than creating a Windows 2 go W8 system.
However I think you'll gain decent learning from this plus you should even have some fun doing it -- your colleagues will definitely want a "Bootable Windows to go" !!!.
One "Little Warning" W8 Navigation is a bit different -- when it boots you'll see load of little squares (Metro apps) -- just click on Desktop then it all works pretty much as Windows 7.