Unable to update to Windows 8.1, "0xc1900101-0x40017" error resolution

When upgrading from Windows 8 to Windows 8.1, the following prompt may appear: Unable to update to Windows 8.1

Sorry, we are unable to update Go to Windows 8.1. We have restored this computer to a previous version of Windows.

0xc1900101-0x40017

can be caused by the following reasons:

1. Antivirus software

2. Drivers with problems

3. Some external devices that are not compatible with Windows 8.1 Solution:

1. First, please confirm whether your model supports upgrading to Windows 8.1< Br>

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. For details, please refer to:

3. Uninstall software and drivers that may affect the update. Such as anti-virus software, power management, graphics driver and so on.

4. Install all Windows update update patches before attempting to update Windows 8.1 in the store.