I use Windows Vista Ultimate, and have four disks of 500GB. Windows is already installed on one disk, the systemdisk.

Now I would like to mirror the system disk using Windows built-in software raid. How do I activate it?

What do I have to do in the systemdisk? do I have to transform it to a dynamic disk first? How about the other disk, should I format it first and then transform it to dynamic, anything more I have to do?


All you need to do is:

  1. Go to Computer Management > Disk Management

  2. Right click on your main disk (not partition) and choose Convert to dynamic disk...

  3. Right click on your main system partition and choose Add Mirror

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  4. Select the disk you want to mirror to.

All done!

  • I don't have an "Add Mirror..." option in that menu. I have made the disk "dynamic". Any suggestions? – Jonas Sep 10 '10 at 14:42
  • Windows Vista dosn't seem to have this feature: superuser.com/questions/187671/… – Jonas Sep 12 '10 at 11:50

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