Question : Total installation size footprint windows 7

Anyone who is running 64 bit windows 7 by itself (i.e. without other OSs present), help me out by giving me the TOTAL installation size -- footprint.  Go to file manager, highlight these folders --
ROOT
WINDOWS
PROGRAM FILES
DOCUMENTS AND SETTINGS
and any other folders that are relevant to windows 7 programs.

I don't just need the windows 7 footprint (which is 20GB) but the TOTAL footprint for an average working installation.  Obviously this will vary depending on your apps, but I can handle that variance.  Please do not include any data folders or temporary folders (e.g. for IE).

Everyone who gives me realistic footprint sizes will get points.  Thanks for your help, need this ASAP.

Answer : Total installation size footprint windows 7

For me, my install is as follows:

Root - 1.99GB (including pagefile.sys)
Program Files - 1.12GB
Users (not Documents and Settings) - 3.27GB
Windows - 10.6GB
Total: 16.98GB

This is excluding the Temp folders, and SoftwareDistribution folder in \Windows . I don't have a lot installed and excluded any installed program folders in the Program Files folder.

Lee