Please request your technical support as I can't update to the new version of Wolfram 14.3 + Documentation (English) for Windows 11. The installation in the Wolfram Download Manager stops with this message: “A file that is required cannot be installed because the cabinet file C:\Users\loris\Downloads\Wolfram App 14.3 and English Documentation\en-us5.cab has an invalid digital signature. This may indicate that the cabinet file is corrupt.”

I forced the installation, but the new 14.3 version doesn't work properly; for example, the built-in Help system only provides command explanations over an Internet connection. Test that I've done the following: • I uninstalled Mathematica 14.3 • I reinstalled Wolfram 14.3.0WINBndl_DLM.exe • The Download Manager crashes again with the same message as before: "A requested file cannot be installed because the cabinet file C:\Users\loris\Downloads\Wolfram App 14.3 & English Documentation\en-us5.cab has an invalid digital signature. This may indicate that the cabinet file is corrupt."

Awaiting a positive response, I send Best regards,