MediaCreationTool22H2.exe. It says to reference the error code 0X80072F8F - 0X20000.

My fix was to install using Win10 USB instead of Media Creation Tool. The below fix did not work in this case, but I'm keeping in here for future reference.


Some server that the MediaCreationTool21H2.exe tries to talk to apparently no longer speaks the old TLS 1.0 security protocol, but Windows 7 SP1 still has the newer TLS 1.1 and TLS 1.2 disabled by default, resulting in this error code right at the start. So I had to first run the "Easy fix 51044" MSI to make a few registry changes to enable the more recent TLS versions, and then Media Creation Tool - error code 0X80072F8F - 0X20000 no longer appeared.

https://support.microsoft.com/en-us/topic/update-to-enable-tls-1-1-and-tls-1-2-as-default-secure-protocols-in-winhttp-in-windows-c4bd73d2-31d7-761e-0178-11268bb10392#bkmk_easy

Keywords: Windows 7, Windows 8, Upgrade, Update, Win10, Windows 10