Solve Win8.1Update update problem

Microsoft pushed Win8.1 Update to all Win8.1 platforms on the patch Tuesday of April, but this update is not successful, many Win8.1 users upgrade Win8.1 Update process Encountered 0x80070002, 0x80070003 error code, causing the update installation to fail.
According to foreign media TWCN reports, Microsoft released a 2.3MB/2.6MB KB2919355 patch for 32-bit and 64-bit Win8.1 platforms, and slightly upgraded the Win8.1 system maintenance tool "Troubleshooting" to support repairing Windows updates. 0x80070002 and 0x80070003 error issues.
When the file is missing during the Windows Update update, the above two error codes will be prompted. Below we describe how to complete the Win8.1 Update system update method by first upgrading the "Troubleshooting" function and then quickly and quickly fixing an error code.
Open Win8.1 control panel, open "System and Security - Windows Update", manually check and install KB2919355 repair patch (file size is about 2.3MB, 2.6MB); after installing the repair patch, you need to restart Win8.1 system, complete Configuration. The Troubleshooter tool now completes the update.

Log in to Win8.1 system, open "Control Panel - System and Security - Operation Center", select "Troubleshooting", select "Windows Update" in the troubleshooting panel to solve the problem, run Windows Update Repair program.
After the system test is completed, Windows Update will automatically display a troubleshooting report and select "Next" to complete the repair work.

Once the problem is fixed, you can reopen the Windows Update component and reinstall the Win8.1 Update.