Win10 upgrade 9879 failed solution

Microsoft recently released the win10 preview version of the upgrade program, the latest upgrade version number is 9879, many users reflect the upgrade failure when upgrading, but there are also a large number of user upgrades without any problems, then it is conceivable that not Microsoft The problem with the patch package is a large part of the user's own system problem. What is the reason for the 9879 upgrade failure? Let's take a look at the small series for details.
Win10 Preview Upgrade 9879 Failed Fix:
Method 1: Rename SoftwareDistribution Folder

· Disable Windows Update Service in Service
· Open C:Windows 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

Experience the latest features brought by the new version of win10 Users who can't upgrade normally can try the setting method that Hedong Xiaobian has arranged for you without reinstalling the system. If you can't solve your problem through the above three methods, then this kind of user may Faced with the problem of system reinstallation.