Win8.1 Update update failed?

Last week, Microsoft pushed the Win8.1 Update patch update to all Win8.1 platforms on the April patch day, but this update is not going well. Many Win8.1 users at home and abroad have encountered the 00× 80070002, 0× 80070003 error codes during the upgrade of Win8.1 Update, and the final installation fails.
If you are an advanced user, you can refer to the graphic tutorial compiled by IT House, and use the command to repair the Win8.1 Update update failure. For ordinary users, it is somewhat difficult.
Now, Microsoft brings an easier fix for ordinary users.
According to foreign media TWCN reports, Microsoft released a 2.3MB/2.6MB KB2919355 patch for 32-bit, 64-bit Win8.1 platform, a small upgrade Win8.1 system maintenance tool "difficulty", support Fix Windows update 0× 80070002 and 0× 80070003 error issues.
When the file is missing during the Windows Update update process, the above two error codes will be prompted.
Then we quickly fix these two error codes, the specific reference tutorial is as follows ——
1, open the Win8.1 control panel, open the Windows update under the system and security section, manually check the installation KB2919355 repair Patch (volume about 2.3MB, 2.6MB);

2, after installing the patch, the ordinary user needs to restart the Win8.1 system to complete the configuration;
3, log in to the Win8.1 system, and then open the control Panel "System and Security" Operation Center, select "difficulty"  

4. Under the Intractable Diseases section, open the use of "Windows Update" to solve the problem;

5, run Windows update fix;

6, when the system is detected, Windows update will automatically display a report of intractable diseases, ordinary users can choose the next step to complete the repair work;

7. When the problem is fixed, we just need to re-open the Windows Update component and re-install the Win8.1 Update.