Have you tried restoring your computer to an earlier time using System Restore? http://windows.microsoft.com/en-us/windows7/What-is-System-Restore
Microsoft Windows Outreach
I've checked if it is possible, unfortunately not, step 2 of the Packard bell recovery management, reloads your operating system and retain user data, and it obviously all installed programmes that you installed after purchasing your desktop.
I do have another question, do you know if it would keep all your emails on the drive? When make the recovery cd's and do step 2 it surely makes a backup of all user data? but we cannot find any emails on the harddrive. I use windows live, does it then work differently than outlook express in storing your emails?