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#81
I wouldn't be able to do a clean install via TeamViewer.
You don't want to convert the disk. Be sure to not add extra steps that weren't mentioned. This is throwing you off track.
Make sure that you have all other disks disconnected before doing a clean install to prevent possible issues. You can connect them back once Windows 10 has been successfully installed.
As a test, see if you are able to "Format" the unallocated Disk 0 during Windows Setup by selecting Disk 0 and clicking on Format like in my screenshot above. If successful, delete disk 0 until it shows as unallocated again, select it, and see if it will continue with the installation.