Windows 10 (1511) breaks VMware Horizon View linked clone pools

After upgrading a Windows 10 master image to build 1511 (November 2015 update) and recomposing a linked clone pool in VMware Horizon View 6.2 to use the build 1511’s snapshot, composition fails with the following error:

View Composer agent initialization state error (22): Failed to mount persistent disk. Please check the parent VM if an existing disk is using the same drive letter. (waited 0 seconds)

Reverting back to the previous build’s snapshot and recomposing provisions the VM as expected and without error. Note that I have not tried to re-install the agent on the build 1511 so it is possible that re-installing the View agent will resolve the issue.

UPDATE: Re-installing the VMware Horizon View agent seems to have resolved the issue. I typically never have an issue with the agent needing to be re-installed and don’t recall running into the issue when going between dev builds. Luckily this appears to be resolved and was an easy fix. Here’s hoping that build 1511 resolves the outstanding issues that we’ve had in testing with a small group of end users.

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