Is there a way to easily transition from O365 Pro Plus to Volume Licensing without uninstall?

Team,  I have a client that wants off of O365 Pro Plus.  They are purchasing an OVS Pro Plus license for there company.  It's about 50 units in this first round, will go to 100 in the second phase.  I am NOT looking forward to having to uninstall 2013 Pro Plus only to reinstall 2013 Pro Plus.  

Has anyone ever gone through this?  Is there a way to sneak this past the registry?  Something?  Many thanks to all,
JP
jpbowdoinAsked:
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Jian An LimSolutions ArchitectCommented:
no way.
Office 365 Pro Plus is a click-to-run version.
Where open volume licence (OVS) pro is a MSI version.

So there is no way to do so.

to simplify the uninstallation, you can run the fix tools
https://support.office.com/en-us/article/Uninstall-Office-2016-Office-2013-or-Office-365-from-a-Windows-computer-9dd49b83-264a-477a-8fcc-2fdf5dbf61d8

but eventually, it can be script and uninstall and install via SCCM or other deployment machnism

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