Windows Backup Disk is Full


I have Windows 7 Pro (x64) running Windows Backup to an external 250GB HDD. Windows' own disk is also 250GB in size. Every few weeks Backup stops doing it's thing because the drive is filled to capacity. After I delete some of the older backups, things are fine for a little while. Is there a way to configure Windows Backup to overwrite older versions like Apple's Time Machine?

Backup is set to backup every night (to cover that day's work), have Windows choose what's to be backed-up and that's it.

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Jason WatkinsIT Project LeaderAsked:
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David Johnson, CD, MVPOwnerCommented:
You will need a lot larger external hard drive. The normal windows backup does both a file based backup and an image based backup of the recovery partition and the system partition. Unless your data is on another partition you will need (a) the size of the data (which included older versions) + the used size of the system and recovery partition.

Suggest you partition your system drive (c:) and move the data to another partition (another hard drive would be ideal) this will reduce the size of the image backup of windows 7 and recovery partition)  

Suggest: at least a 1TB backup drive
Jason WatkinsIT Project LeaderAuthor Commented:
There is not 250gb of data on the drive, why can't 250 work?
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David Johnson, CD, MVPOwnerCommented:
because it is saving the 'files' and an image 2 copies that are different plus it does save previous versions.
i would suggest using 2 drives for backup alternately (they can go bad also)
so use the 250, and the new one
you may like the free syncback better  :
Jason WatkinsIT Project LeaderAuthor Commented:
Thanks everyone!
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