Windows devices can be lightweight and highly mobile, yet, when you need it, have the full capabilities of the Windows OS. The Windows Storage and Deployment Teams, the people who bring modern storage APIs, Storage Sense, setup, and servicing to your phone, tablet, laptop, and desktop would like...
It would appear that some Win 10 users are having issues with update KB3020114. Microsoft have posted an official solution on the Windows Insider Hub:
ref:
Insider Hub found on Windows 10 Tech Preview