Marks35864106, since 4.6.1.393 is a web release and not a mandatory release you will need to uninstall the current installation of the Adobe Creative Cloud desktop application and reinstall to obtain version 4.6.1.393. You can download and run the Creative Cloud desktop app uninstaller utility from Uninstall the Adobe Creative Cloud desktop application to remove the current installation.
Once removed you can use the process in Learn how to download your Adobe Creative Cloud apps to reinstall the Adobe Creative Cloud desktop application and obtain version 4.6.1.393.
Adobe Creative Cloud desktop application is not currently available for download and local installation or through the Creative Cloud Packager. These releases always come after the initial public release and are not consistently implemented for web releases. You will need to be on a non-restricted network or have access to the servers listed in Adobe Creative Cloud Network Endpoints to install version 4.6.1.393 of the Creative Cloud desktop app, Marks35864106.
Please update this public forum discussion if you have any additional questions.