Can I Use Disk Utility from an External Hard Drive?

I would like to use Disk Utility to verify and/or repair my hard drive. I am too lazy to run this from my install disk. Can I merely copy the application to my external hard drive and launch it from there? Would this work successfully? Could it damage anything? Thanks!

Hi! You can't repair a disk that you are booted from so you could run the repair disk function IF you are booted from another volume such as a bootable internal or external drive or the install disc. You'll have to clone your boot drive and repair from the clone after booting to it. Tom

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