I recommend you use the ISO file to upgrade offline:
Please be advised some users are reporting issues with the Windows 10 1803 update. Make sure you backup before attempting to upgrade:
http://answers.microsoft.com/en-us/windows/wiki...
How to block it if you don't want to upgrade:
https://www.groovypost.com/howto/block-windows-...
What is the make and model of your computer?
Have you checked the manufacturers website to determine compatibility?
Check this List to Determine if Your Computer is Compatible with the Windows 10 Fall Creators Update 1803
https://answers.microsoft.com/en-us/windows/wik...
perform the following tasks:
12 Things You Should Do Before Installing Windows 10 Creators Update (Version 1803)
[https://www.groovypost.com/howto/prepare-comput...](https://www.groovypost.com/howto/prepare-computer-windows-10-creators-update-version-1703/)
How to download official Windows 10 ISO files
[http://answers.microsoft.com/en-us/windows/wiki...](http://answers.microsoft.com/en-us/windows/wiki/windows_10-windows_install/how-to-download-official-windows-10-iso-files/35cde7ec-5b6f-481c-a02d-dadf465df326)
How to Upgrade to Windows 10 Creators Update version 1803 using ISO File from Versions 1507, 1511, 1607, 1703 or 1709
[https://answers.microsoft.com/en-us/windows/wik...](https://answers.microsoft.com/en-us/windows/wiki/windows_10-windows_install/how-to-upgrade-to-windows-10-creators-update/617a37da-8fc0-4f33-a3eb-59fe9082f925)
Note: This is a non-Microsoft website. The page appears to be providing accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.