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Hyper-V VM: 'Virtual machine' failed to start worker process: The computed authentication tag did not match the input authentication tag.

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Category: Hypervisors
Read Time: 1 min
Published: 18 February 2025

You try to enable TPM on virtual machine, and once you start it up you encounter the error: 'Virtual Machine' failed to start worker process: The computed authentication tag did not match the input authentication tag (0xC000A002). 

Read more: Hyper-V VM: 'Virtual machine' failed to start worker process: The computed authentication tag did...

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