Win10 preview upgrade 9879 failed repair solution

Microsoft recently introduced the latest update of 9879 for Win10 preview users, but some users in the update process reported that the upgrade 9879 failed and could not continue to update. What should I do? Because it is a new system, many users cannot solve it at one time. The following are some of the repairs that Xiaobian has compiled according to the situation reflected by everyone.
Win10 Preview Upgrade 9879 Failed Fix:
Method 1: Rename SoftwareDistribution Folder

· Disable Windows Update Service in Service
· Open C:\\Windows File Folder, then right click on the SoftwareDistribution folder to rename it.
· Re-enable the Windows Update service after the rename is complete.
Method 2: Repair Windows components

Simultaneously press Win + X, select command prompt (admin), and then enter the following command (you can also copy and paste right):
Dism /Online /Cleanup-Image /CheckHealth
Dism /Online /Cleanup-Image /RestoreHealth
Method 3: Use ISO image to upgrade directly to Win10 Preview Build 9879

I want to experience Win10 Preview 9879 as soon as possible Come to the new features and new experience, but also suffer from the failure to upgrade the friends, hurry to try the above methods, there will always be a way for you to help you solve this problem as soon as possible.