Dragon Age + Windows 7 Backup

microsoft forums thread on the subject

If you install Dragon Age Origins to another drive, let’s say D:, it will cause Windows Backup tool to make image backup of D: drive too.

This is because Dragon Age  contains ”Updater service” which Windows considers part of the ”core system” and that’s why it creates image backup of D: too. If you don’t want to backup D: drive one option is to move the update service to c: drive and update service’s registry entry accordingly. Please see above link for more details.