Win10 preview version 9879 can not be automatically updated how to do

Computer Store News: Microsoft released the Win10 Build 9879 preview update. Users can get updates by "Update & Restore" —“Preview buildings" in the <;PC Settings>

Many friends chose to use the system auto-update feature to upgrade the new version of Win10 Preview 9879, but some friends found that there was no update after clicking Preview buildings. As shown below:

In fact, the solution is very simple, just select “Fast” in the drop-down menu on the right, and then click the “Check now” button, you will receive the download prompt after a while.

Click “Download now” to start the download.