Rebuilding Hyper V after crash

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http://serverfault.com – I am currently having an issue with our Domain Controller network environment which is on Hyper V. Basically the machine that was hosting the Hyper V has crashed. The problem is not with hard drive but with the corrupted hyper v file. We have all the vhds and xml configuration files in separate partition. Plan is to make a fresh install of hyper v and reattach all virtual machine. My question is how to do this so that we can retain same DC network? Please let me know if you need further clarification. Thanks, (HowTos)