Backup without restore?

Hi need help with windows 7 backup.

I've got an external HD which is just large enough to backup all my libraries.
However whenever windows backs up it seems to create new backup data for any changes to files ie. it'll have backup data for each date it backs up. I believe it does this so I can restore my system to the way it was on a certain backup date. However this also means I run out of space on the backup disc after about 3 or 4 backups.

So, is there a way to make it just have one backup, so only the newest backup is stored? Ie. so my backup drive is simply a mirror image of what is currently in my libraries as opposed to keeping a record of what existed there on previous backups?

Thanks

whs said:

make a "Custom Setup" and then: (it is supposed to read "uncheck" not ucheck, sorry)

Ok so that procedure would do one backup. Say I then installed some new files after doing this. Would I then be able to repeat this procedure and it would only backup those new files ( rather than the all the libraries again from scratch ?)

whs said:

If you use this procedure, you start from scratch every time. Just delete the old backup file.

Only problem is I'm backing up 200GB takes a long time to start from scratch

whs said:

Then you should consider an imaging program that does differential backups. Free Acronis or Paragon are good options. Free Backup Software: Paragon Backup & Recovery Free Advanced Edition - Overview

Great! I think that's the sort of thing I was looking for.

Cheers