I have run into the "Windows Mixed Reality uninstall" issue mentioned on the Known Issues page and the suggested resolution is not working for me.
As suggested I have:
rebooted
removed the reg keys mentioned (for the ones that appear in my system)
- 1) HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Holographic ("FirstRunSucceeded" was not there)
- 2) HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Holographic\SpeechAndAudio (the SpeechAndAudio folder was not there so "PreferDesktopSpeaker" and "PreferDesktopMic" were not there)
- 3) found and removed "DisableSpeechInput" from HKEY_CURRENT_USER\Software\Microsoft\Speech_OneCore\Settings\Holographic
4) found and removed "DeviceId" from HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\PerceptionSimulationExtensions ("Mode" was not there)
removed the roombounds.json file
removed the contents of the SpatialStore (a single folder called HoloLensSensors)
looked for the Analog.Holographic.Desktop capability but it wasn't listed so FOD must not be installed
rebooted
I have now repeated the process and gone through the initial setup steps numerous times and continue to get the same message after successfully configuring the room boundary and trying to advance to the next step.
Between one of my reattempts I doubled checked if there were any Windows updates and downloaded cumulative update. My system currently says it is:
Version: 1703
OS Build: 15063.540
The initial reason for doing a Windows Mixed Reality uninstall was that I was having issues where the world would initialize about 100 ft above the building. After spending a lot of time to try and navigate down to the building I eventually gave up and tried uninstalling which is why I ran into this issue.
On the bright side, having to repeat the setup process so many times I spotted the confusing UX quirk that caused my initial problem on the enter you height screen. I thought it was odd that the system wanted me to enter my height as a total number of inches... but later realized that when focus is on the input box that the label to the right is actually another input box. So I believe the system thought I was 70 ft tall, instead of 70 inches. :-(
However, if anyone has any more details on how to successfully reinstall Windows Mixed Reality after having done an uninstall I would appreciated the help.
Unfortunately, the Windows Mixed Reality devices (HP in this case) run on far fewer dev quality machines than I expected (including Microsoft's own Surface Book), so it would be nice if I could figure out how to get things working on my Surface Pro 4 machine again.