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Cannot lock disk

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Sometimes the WinPE recovery disk complains that it cannot lock a disk. It tells me to use the Linux recovery disk, which unfortunately doesn't have drivers for my RAID chipset (IRST).

I've found a couple of workarounds for this, but they are tedious. Is my experience unique?

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Jerry,

I have not seen any posts here of this problem.  I have seen posts for a disk being locked that gives issue.

In most cases these issues are caused by either a pending Windows update needing to finish or a hyberfil file that did not flush data correctly.  Both of these issues can usually be corrected by a reboot of the system. 

Well, since the only way to get the rescue media to load is to reboot the system, that's already been taken care of.

I've gone through so many permutations that I can't be certain, but if it happens again I'll verify whether or not the existing system is bootable.

Using the Linux disk did work, but of course I couldn't restore using RAID mode. Fortunately, despite warning to the contrary, I've found that I can boot an AHCI drive and then convert it over to a RAID volume without losing data.

Jerry,

My comment to reboot in this context is to reboot the computer back into the Windows installed environment.  After Windows boots again then shutdown the computer, attach your recovery media, and boot to that media.

As for changing SATA modes RAID to AHCI or vice versa, as long as drivers for each have been previously installed in Windows this is possible. with a RAID 1 array.

With RAID 5 I suspect doing so will delete the raid array.

I am having the same problem with Dell Desktop with RAID 0 disk running Windows 10 Pro.