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Hyper-V VMMS Certificate Expiration Problem and Resolution

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In the coming days/weeks some of you may see some new errors from Hyper-V.  The first is an error when you try and use VMConnect or SCVMM to connect to a running virtual machine – the error is “Cannot connect to the virtual machine because the authentication certificate is expired or invalid. Would you like to try connecting again? ”.  The second is an error when trying to start or resume saved virtual machine – the error is “'VMName' failed to initialize. Could not initialize machine remoting system. Error: ‘Unspecified error’ (0x80004005). Could not find a usable certificate. Error: ‘Unspecified error’ (0x80004005). ”

This issue is fully described in KB967902 as well as a link to the HotFix. Bryon Surace also posted this on the Windows Server Blog.

Taylor Brown
Hyper-V Integration Test Lead
https://blogs.msdn.com/taylorb

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