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Windows 2012 Essentials on Proliant ML30

Windows 2012 server working OK on Tuesday evening (Health Update sent at 23:00)
Users came in on Wednesday morning and reported the server had powered off. They powered it back on but it just kept rebooting into WinRE
Have gone into Troubleshoot and Refresh you PC but It says The drive where Windows is installed is locked. Unlock the drive and try again
Gone into Command Prompt in Advanced and looked at the Disks via Disk Partition but it says no disks present
The HP Array utility shows the two disks (which are mirrored ) and the four partitions
 How do I unlock the disk?
Thanks in Advance
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Member_2_7690885
Asked:
Member_2_7690885
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1 Solution
 
David Johnson, CD, MVPOwnerCommented:
one item that worked was restoring the registry.
1. boot into windows pe
2. add the drivers for the raid array
3. restore the registry from the regback directory C:\Windows\System32\Config\Regback

https://community.hpe.com/t5/ProLiant-Servers-ML-DL-SL/HP-Proliant-ML150-Windows-drive-locked/m-p/6859133#M153553
http://captaindbg.com/how-to-restore-registry-hives-on-windows-7/
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Member_2_7690885Author Commented:
Hi David

Many Thanks for your swift response

I loaded the drivers (i used drvload in the WinRe command prompt

I can now see the drives and the data on them

I'll do the registry restore in the morning

Thanks again - That has saved an awful lot of work for me and the users.

One final thing - Is there any indication about why it happens?

Cheers

Jim
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David Johnson, CD, MVPOwnerCommented:
From what I was able to find there was no root cause.
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Member_2_7690885Author Commented:
The Registry restore didn't work

The solution in the end, identified by an HP Engineer was as follows

I discovered that by using the command prompt option in the WinRE screen I could use drvload to load the drive controller driver (HPSA3.inf) and that would let me see the drives, but if I then tried another option such as refresh the PC it would not retain the Disk Controller drivers

Finally the solution was suggested by an HP Engineer - https://www.youtube.com/watch?v=kyBrjDpsXGc

I follow the instructions in the video and a link I found on the Internet

That allowed me to reboot the server but it said the server had had an error.

However it allowed me to get into the Advanced Boot option screen. I rebooted into safe mode and I ran sfc /scannow. That said it found and fixed some file errors

I then rebooted, but again it went to the Advanced Boot option screen. I used the Last Known Good option and that then loaded Windows OK. Since then I have rebooted the machine a number of times and powered it off and on without any issues
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Member_2_7690885Author Commented:
It solved the problem
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