"Check for Updates" doesn't work.

[BluBrett]

I have an At&t HTC M8. I go into settings and tap "Check for Updates" and it turns gray as I tap to select it, but turns white again when I release it. Then I get a "Device Management is running" notification in my notification tray until I go into my tuning apps and force quit "HTCdm." It happens time after time, I've tried soft and hard restarting the phone. Any solutions out there?

 

[BluBrett]

Solved for anyone who may have the same problem. Cleared HTCdm cache, then app data went up from 0 to 12 KB. Cleared app data and the problem sent away.