Hi,
Don't wait go force the installation of 20H2 . download mediacreationtool20H2. make an iso file , then extract the iso file in place then access the installation folder then click on the setup installation and keep files and apps then follow the process. If extract does not appear in your mouse menu download 7zip (https://www.7-zip.org/a/7z1900-x64.exe) and install it >right click on the iso then go to 7zip>click on extract to
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I tried both the media craetion tool and upgrade assistant from microsoft. Both didnt worked for me. The installation failed because of incompatibility (the driver incompatibility).
Then I went for the "Conexant Driver replacement with microsoft default driver" and blocked force driver update by windows update through Windows Registry. Eventually I got what I wanted, 2004 version upgrade by windows update. But that was last month.
Last week I got the 20H2 update also.