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Clone an external partition then boot from it?


I have an external harddrive with Windows 8 To Go. I'd like to copy this partition to a partition on my laptop (next to the current os Windows Vista) then have a boot menu. I think bcedit needs to be changed ... if it is possible at all.

Thanks for your input.
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I am quite sure it is possible. Do it like this: get the win eight setup DVD and install a blank win 8 next to vista. Then get the trial of drive snapshot, create an image of 8togo and from within the booted blank 8, restore the Togo one over the blank. Yes, that's possible with drive snapshot. Free trial, no installation needed.
be aware that you need a license for the cloned 8
Steven HarrisPresidentCommented:
Although this may seem obvious, it is important to back up your files to an external backup medium before attempting a dual-boot installation (or any other hard drive manipulation), in case your hard drive becomes corrupted during the process.  Proceed at your own risk.

--I never recommend cloning to a partition for Dual Boot*, but these are the logical steps--

You will need to create a new Partition with Disk Management:

In XP/Vista/7:
1.      Start the Disk Management utility.
   A.      Click the Start button.
   B.      Select Control Panel.
   C.      View the system options.
      o      In XP, click the Performance and Maintenance link.
      o      In Vista, click the System and Maintenance link.
      o      In 7/8, click the System and Security link.
   D.      Click the Administrative Tools link.
   E.      Double-click the Computer Management icon.
   F.      In Vista, click the Continue button.
   G.      In the left pane, if not already expanded, double-click Storage.
   H.      In the left pane, select Disk Management.
2.      In the lower-right pane, right-click the Unallocated box that represents the free space on the hard disk.
3.      Create a new partition.
   •      In Vista/7/8, from the drop-down list, select New Simple Volume....
4.      Click Next.
5.      Specify the size of the partition you want to create.
   •      In Vista/7/8, in the Simple Volume Size in MB: spin box, type the size you want for the partition you are creating.
6.      Click Next.
7.      Click Next.
8.      Use the radio buttons and check boxes to select whether or not to format the new partition.
9.      Click Next.
10.      Click Finish.

If you already have a spare HDD to use or have the Partition Setup:

Use a Cloning Software such as DriveImage XML to copy your external block by block to your new partition or spare HDD).

Use the System Configuration utility in Windows to change the default boot operating system, or a third party tool like EasyBCD.

Again, I can't stress the importance of Backups and External Clones to protect your data and settings during any type of transition of this nature.

*I recommend clean install for Dual Boot scenarios.  An excellent guide is shown on the EightForums.  You can also virtualize the Win8 HDD and use Oracle VM VirtualBox.
janhoedtAuthor Commented:
I installed Windows 8 to a secondary partition, it starts up. However, boot menu doesn't show Vista anymore(!) How can I get this Vista menu back?
I had once done that, on a test workstation and Vista was still there afterwards, sorry for you :}
You will have too google for vista and win8 dual boot or simply take some tool like http://www.vistabootpro.org/
Steven HarrisPresidentCommented:
Did you follow the instruction I posted above?  I am running a Vista/Win8 dual boot on a whitebox that works just fine.
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