Microsoft Office 2007 was originally sold as a perpetual license for installation on a single PC. Any version marketed as "portable" is typically a third-party modification that has been "repackaged" to run without an installer.
Before using the Microsoft Office 2007 portable download, ensure that your system meets the minimum requirements: Microsoft Office 2007 Portable Download
I still have and use Microsoft Office 2007, for which - JustAnswer Microsoft Office 2007 was originally sold as a
, often removing features like help files or clipart to reduce file size. Critical Risks and Vulnerabilities for which - JustAnswer