Unable to install off-line help for 5.4.0.3

users
#1

Version: 5.4.0.3 (x64)
Build ID: 7556cbc6811c9d992f4064ab9287069087d7f62c
CPU threads: 4; OS: Windows 6.19; UI render: default;
Locale: en-GB (en_GB); Calc: group

Windows 10

download url for help:

<https://www.libreoffice.org/download/download/?type=win-x86_64&version=5.4.0&lang=en-GB>

  Both main program and help are x64 versions.

After installing, I get the error message:

The LibreOffice built-in help is not installed on your computer.

Any ideas, please?

David Lynch