Back up HDD and my main HDD disk don't match up. I'm confused!

Okay, so here's my set-up

Main HDD: IDE Maxtor 160 gb

Backup HDD: IDE Western Digital 250 gb

My maxtor currently has "65.9 gb free of 152 gb" while my western digital has "84.6 gb free of 232 gb". I'm using the windows 7 backup utility, and I'm not sure why things aren't matching up. Backed-up my hard drive just an hour ago.

One thing to note, if it makes any difference: A week ago I restored my windows 7 to a "previous point", because a patch for a game didn't work out. (previous point being a few minutes before the patch was installed).

So, can someone help explain to me why my back-up HDD is using so much more space? Thanks.
4 answers Last reply
More about back main disk match confused
  1. Does anyone know the problem?
  2. Have you done more than one backup? The Windows Backup utility keeps multiple versions of files so, for example, you can restore a file from a backup made 1 month ago even if you made a more recent backup.
  3. Well, I did defrag my main HDD a few days ago, before I backed up. Not sure if that would''ve done it. Yes, I've done 2-3 backups so far. If this is the case, 2 more backups, and my backup HDD will be full. Doesn't sound right.
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Hard Drives Western Digital Maxtor Backup Windows 7 Storage