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Windows 7: Windows backup size


05 Oct 2013   #1

w7 ult 32 and w7 hp 64 X 2
 
 
Windows backup size

My friend has just got a 500gb USB3 drive for backups and I showed him how to partition it into 3 parts. His laptop has C and E partitions which total about 85gb. When he selected one of the partitions on the backup drive and ran the Windows backup the finished backup was 105gb. How can the backup be bigger than the original? He will be making another backup on another partition to find out if it as the same size or not, but not till next week.

My System SpecsSystem Spec
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05 Oct 2013   #2

Win 7 Pro x64 SP1, Win 7 Ult x86 SP1
 
 

The built in Win 7 Imaging utility includes all partitions it sees as "system" partitions when a backup image is created.
Maybe it is including more partitions than you think it is?

You could try creating a system Backup Image with a free 3rd party program such as Macrium Reflect.
See what size image is created with Macrium.
With Macrium or other Imaging programs you have more control over what is included in the backup image.
You can include or exclude specific partitions very easily.
Here is a tutorial by whs for using Macrium, and it has a link to download Macrium:
Imaging with free Macrium

If you're interested, you could also try mounting the Windows 7 Backup Image as a VHD to see what is in it.
This tutorial by Brink can help with that:
System Image - Extract Files Using Disk Management

I don't use the built in Win 7 Imaging utility because it is not controllable enough for me...
My System SpecsSystem Spec
05 Oct 2013   #3

Windows 7 Home Premium 32-Bit - Build 7600 SP1
 
 

I agree with DavidW7 above. Macrium Reflect FREE Edition - Information and download is a much better option than the built in Windows Backup. The Macrium Image is about half the size of the original files.
My System SpecsSystem Spec
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06 Oct 2013   #4

w7 ult 32 and w7 hp 64 X 2
 
 

Thanks, I will give Macrium Reflect a try out and will pass on your advice to my friend. I have only used the Windows backup before but have never had a backup that was bigger than the original.
My System SpecsSystem Spec
06 Oct 2013   #5

Windows 7 Home Premium 32-Bit - Build 7600 SP1
 
 

Quote   Quote: Originally Posted by tinmar49 View Post
Thanks, I will give Macrium Reflect a try out and will pass on your advice to my friend. I have only used the Windows backup before but have never had a backup that was bigger than the original.
Macrium doesn't really tell you at the website, but there is a Macrium boot disk that is part of the package. You need to make that so that you can boot your PC when there is a problem.
My System SpecsSystem Spec
06 Oct 2013   #6

w7 ult 32 and w7 hp 64 X 2
 
 

I have just downloaded Macrium Reflect free and made a system image which totalled 68% of C drive (I have only one partition on this pc for Windows 7). I also made the boot disc.
My System SpecsSystem Spec
06 Oct 2013   #7

Windows 7 Home Premium 32-Bit - Build 7600 SP1
 
 

Quote   Quote: Originally Posted by tinmar49 View Post
I have just downloaded Macrium Reflect free and made a system image which totalled 68% of C drive (I have only one partition on this pc for Windows 7). I also made the boot disc.
Just to verify, when you made the Macrium image, did you make it on a different drive than C:. It is not advisable to keep the image on the same drive as Windows. If the Windows drive is corrupted so is your Image. You can either use an external drive or a second hard drive if you PC has one.
My System SpecsSystem Spec
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