Hey Greg.
If it’s not set, Oculus Home will run every time you start SteamVR, however, if you check run as administrator, Oculus Home doesn’t not start, meaning SteamVR loads faster, and games do not run through Oculus Home, which would be a problem with the DK2 and NOLO as the controllers would not be available in Oculus Home.
OVRServer still runs in the background, meaning you can fully use the DK2 with the sensor, but everything (all software) runs through SteamVR instead of Oculus Home.