Hey did you also read the notes on the torrent 
How to install if you have a Genuine Windows 7 Home Premium or Ultimate Key
- Extract the ISO image to your Hard Drive.
- Use the Shrinker Tool to remove the Pre-Activation from the ISO, and create a new ISO File to use (Option 4).
- Install Windows 7 and enter your product key, you may automatically Activate if you wish.
You may have to re-type the product key again once Windows is installed to make it Genuine.

Using the Shriking Tool (GUI Version)
- You will need .NET Framework 2.0 (or 3.5) installed to use this. Windows 7 comes with 3.5 as standard.
- This removes around 250mb-1.5gb of extras included (not including Windows Editions), but doesn't remove updates.
- To use this either run this from a DVD/USB Device, or you can extract the ISO file on to your Hard Drive.
(Extracting the ISO FIle at this time is OK, because it will re-generate a Bootable ISO File for you.)
- Run the "shrinker-gui.exe" file located on the DVD, select a folder with atleast 12gb free, and select your options.