Microsoft has stopped rolling out their major Windows 10 October update. After installing the Windows 10 update they have reported that their files, photos, and documents have been washed out from the PC. Many users complaint on the official windows discussion boards and on the Windows 10 Reddit account. 

Microsoft has confirmed that they have paused the rollout :
We have paused the rollout of the Windows 10 October 2018 Update (version 1809) for all users as we investigate isolated reports of users missing some files after updating.

Microsoft Pulls Out Windows 10 Update That Wipes Your Data 1

A user has made a complaint on Microsoft’s support page and many other users replied to that thread, read more for info