Kerry Brown said:
Having the programs and the system on separate partitions means having to
maintain two images which may get out of synch. You could not restore one
without the other unless the images were taken while the computer is in the
same state. Whenever you update one you'd have to update the other.
It doesn't really matter if you have to backup/restore 2 partitions at 10+20 GB
or a single partition at 30 GB. It may take a few more minutes to process, but
that's pretty insignificant...
Besides, in general, "system state" info is contained in the Registry, on the
boot drive. Some apps store state info in the user account in the Docs &
Settings folder, again on the boot drive. Others store it in the Program Files
folder, again on the boot drive. Between significant software updates, the
files in an app's primary installation folder is pretty much static, unless the
user allows it to store data in the App folder.
The only relevant "system state" issue I can think of would be a significant
software update, where the installed version of the app does not match the
Registry entries. A user's backup scheme to write images of OS and App drives
at significantly different times just doesn't make sense to me.