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Can you repair a Windows 2012 R2 HyperV installation

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Last Modified: 2017-05-17
The virtual machines are present and run fine. I can manage the machines from a second HyperV Machine (both HyperV machines are running windows GUI install with only the HyperV Role installed).

I have read you can uninstall HperV, then re-install HyperV and the machines will still be there, however the Virtual Machines and Virtual Hard drives are in non-standard location.
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JohnBusiness Consultant (Owner)
Most Valuable Expert 2012
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Commented:
You can uninstall Hyper-V and reinstall it without damaging the machines. Make a backup, however, before you start.

Author

Commented:
Hi John,

Any idea how I tell the re-installed HyperV to look at/load my machine configurations from their non-standard locations, or will this information still be stored in the server's registry, or is there a config file that I can save and restore to tell newly installed HyperV  where the machine configurations are stored?

Thanks, Jerry, NRG Services
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Author

Commented:
Setting up switches is no problem as I have plenty of physical switches allocated. Thanks. When/Where do I point to these locations again?
Shaun VermaakSenior Consultant
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Awarded 2017
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Commented:
During installation or you can just add VM back manually if it does not show after reinstall of Hyper-V
JohnBusiness Consultant (Owner)
Most Valuable Expert 2012
Expert of the Year 2018

Commented:
Any idea how I tell the re-installed HyperV to look at/load my machine configurations from their non-standard locations,  <-- You should be able to point in Hyper-V to the guest location. Standard feature.

Author

Commented:
Thank You Gentlemen, I'll be on site tonight to try this again! :)

Author

Commented:
Of note, I also lost the ability to remote into the server.
JohnBusiness Consultant (Owner)
Most Valuable Expert 2012
Expert of the Year 2018

Commented:
So you need to be on site to get things going again.

Author

Commented:
ON SITE: I removed and re-added Hyper-V role. Made note of Network configuration and virtual machine locations first. During Add Role of Hyper-V, was prompted for machine storage location. Everything came back fine, with of course the missing network configuration: Added back in the external adaptors and corresponding machine settings, and all OK!!!!
JohnBusiness Consultant (Owner)
Most Valuable Expert 2012
Expert of the Year 2018

Commented:
Thanks for the update. I thought I had given you some assistance for this issue.

Author

Commented:
Yes John, I appreciate your feedback! I'm not sure how this system works for giving credit to assistance rendered and hope I did nothing wrong? I think I gave Shawn some points because of the warning "about the Network configuration being lost when you do this process". I'd gladly "spread the wealth", if you tell me how. No offense intended by not doing this so far. As I said, I am new to this interface.
JohnBusiness Consultant (Owner)
Most Valuable Expert 2012
Expert of the Year 2018

Commented:
You can leave this question as is - no issue. For future, when you close you can select answer and one or more assists which is how most of us do this. No need to go back here on this one. Cheers.

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