Analysis of the reasons for the failure of Windows 8.1 update

Recently, some users encountered some problems when updating the Windows 8.1 system. The system error message could not be updated to the Windows 8.1 system, so the Windows 8.1 system update was automatically terminated. so, what happened? See how the masters come to answer this question for everyone.
The possible causes:
1. Anti-virus software (recommended to close or uninstall first)
2. Problematic driver
3. Some use external devices that are not compatible with wind8.1
Solution:
1. First, please confirm whether your model supports upgrading to Win8.1.
2. It is recommended that you temporarily remove all non-Lenovo pre-installed external devices, such as mouse, keyboard, printer, camera, etc.
3. It is recommended that you back up important personal files and use the one-click recovery function to restore the computer to the factory state. Please refer to the operation method.
4. Uninstall software and drivers that may affect updates, such as anti-virus software, power management, graphics drivers, and more.
5. Install all Windows update update patches before attempting to update Win8.1 in the app store.
The above analysis shows that there are many reasons for the failure of Windows 8.1 update. Virus, driver and incompatibility are one of the reasons, so users can only find out the reason for the update failure. Solve this problem that cannot be updated.