Do you already have Upgrade Readiness or Device Health deployed in OMS?
If not, read this blog
Need to know more about Windows 10 patch compliance and don't want to access Config Man (SCCM)?
Update Compliance is the answer!
It's just as simple as adding the OMS Update Compliance Solution
Click on the Shopping bag (on left hand pane)
Scroll right to Update Compliance
Click Add (this will be Add not View, if you don't already have the solution loaded)
Voila! (time elapsed as the solution gathers data every 12 hours )