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I had a hyper-v vm running server 2008 that was hacked. &nbsp;I disabled all admin accounts, but I am now screwed since I can't do any admin functions. &nbsp;I was told to use the bootdisk here <a href="http://pogostick.net/~pnh/ntpasswd/" rel="ugc">http://pogostick.net/~pnh/ntpasswd/</a>&nbsp;to reset the password. &nbsp;I tried that and got the error in the screen shot attached.<br />
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<a href="https://filedb.experts-exchange.com/incoming/2013/06_w24/660036/Capture.PNG" target="_blank" title="dos output (15 KB)"><img alt="dos output" class="file-block lazyload" style="max-width: 597px;" data-src="https://filedb.experts-exchange.com/incoming/2013/06_w24/660036/Capture.PNG" /></a>
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Capture.PNG

I had a hyper-v vm running server 2008 that was hacked.  I disabled all admin accounts, but I am now screwed since I can't do any admin functions.  I was told to use the bootdisk here http://pogostick.net/~pnh/ntpasswd/ to reset the password.  I tried that and got the error in the screen shot attached.



hyper-v issue resetting password with bootdisk

Windows Server 2008 and Windows Server 2008 R2, based on the Microsoft Vista codebase, is the last 32-bit server operating system released by Microsoft. It has a number of versions, including including Foundation, Standard, Enterprise, Datacenter, Web, HPC Server, Itanium and Storage; new features included server core installation and Hyper-V.

Windows Server 2008

Hyper-V is a native hypervisor; it can create virtual machines on x86-64 systems and supersedes Windows Virtual PC as the hardware virtualization component of the client editions of Windows NT. A server computer running Hyper-V can be configured to expose individual virtual machines to one or more networks. Hyper-V Server supports remote access via Remote Desktop Connection. Administration and configuration of the host OS and the guest virtual machines is generally done over the network.