Run the Windows update Troubleshooter and check if it helps:
Type troubleshooting in Windows Start Search box
Click Troubleshooting
Under System and Security, click Fix problems with Windows Updates.
The most reliable method to install 1709 is manual
- If you choose not to upgrade, you can block it
https://www.groovypost.com/howto/block-windows-...
If you decide to go ahead read on
- Check this List to Determine if your computer is Compatible with the Windows 10 Fall Creators Update 1709 (Click on your manufacturer's link)
https://answers.microsoft.com/en-us/windows/for...
- 12 Things You Should Do Before Installing Windows 10 Creators Update (Version 1709)
https://www.groovypost.com/howto/prepare-comput...
- Would recommend that you take a back up prior to upgrade
https://answers.microsoft.com/en-us/windows/for...
- Download Windows 1709 ISO
http://answers.microsoft.com/en-us/windows/wiki...
- How to Upgrade to Windows 10 Creators Update version 1709 using ISO File from Versions 1507, 1511, 1607 and 1703