How to solve win8.1 error code 80073712?

win8.1update error code 80073712 Solution:

Many users report that such a message will appear when installing Win8.1 Update; unable to complete the upgrade, undo the change, and then the error code 80073712, There is also no detailed information to inform users how they can fix this problem.

A user of the Microsoft Community Forum wrote that the installation of KB2919355 was quickly completed 74%, and it was very slow at 89%. Eventually, an error message was displayed, "Unable to complete the upgrade, cancel the change," There is no other detailed information. I wasted a lot of attempts yesterday, and using any of the methods mentioned in the previous post did not help. I installed Win8.1 on a 240GB SSD with 50GB of free space and data stored on a separate drive.

Although there are several solutions available at the moment, these methods are not very effective. Microsoft has not provided a solution to the problem, and foreign media has contacted Microsoft on this matter.