Are you planning to use it to restore?
I'd suggest make a Virtual Hard Disk (VHD) of your system with the Sysinternals tool Disk2vhd
You can mount this vhd to manually restore whatever you need or run it in a virtual machine if you're planning to move to Windows 7.
Disk2vhd is a utility that creates VHD
(Virtual Hard Disk - Microsoft’s
Virtual Machine disk format) versions
of physical disks for use in Microsoft
Virtual PC or Microsoft Hyper-V
virtual machines (VMs). The difference
between Disk2vhd and other
physical-to-virtual tools is that you
can run Disk2vhd on a system that’s
online. Disk2vhd uses Windows’ Volume
Snapshot capability, introduced in
Windows XP, to create consistent
point-in-time snapshots of the volumes
you want to include in a conversion.
You can even have Disk2vhd create the
VHDs on local volumes, even ones being
converted (though performance is
better when the VHD is on a disk
different than ones being converted).
The Disk2vhd user interface lists the
volumes present on the system.
It will create one VHD for each disk
on which selected volumes reside. It
preserves the partitioning information
of the disk, but only copies the data
contents for volumes on the disk that
are selected. This enables you to
capture just system volumes and
exclude data volumes, for example.
To use VHDs produced by Disk2vhd,
create a VM with the desired
characteristics and add the VHDs to
the VM’s configuration as IDE disks.
On first boot, a VM booting a captured
copy of Windows will detect the VM’s
hardware and automatically install
drivers, if present in the image. If
the required drivers are not present,
install them via the Virtual PC or
Hyper-V integration components. You
can also attach to VHDs using the
Windows 7 or Windows Server 2008 R2
Disk Management or Diskpart utilities.
Note: do not attach to VHDs on the
same system on which you created them
if you plan on booting from them. If
you do so, Windows will assign the VHD
a new disk signature to avoid a
collision with the signature of the
VHD’s source disk. Windows references
disks in the boot configuration
database (BCD) by disk signature, so
when that happens Windows booted in a
VM will fail to locate the boot disk.
Disk2vhd runs Windows XP SP2, Windows
Server 2003 SP1, and higher, including
x64 systems.
Here’s a screenshot of a copy of a
Windows Server 2008 R2 Hyper-V system
running in a virtual machine on top of
the system it was made from:
