: IT professionals use the Office Deployment Tool to download Office 2019 files for offline installation. While not a "run-from-USB" portable app, it allows you to carry the installation files on a drive for use on computers without internet.
The Guide to Portable Microsoft Office 2019: Best Features, Security, and Alternatives portable microsoft office 2019 best
Microsoft Office has never been designed this way. From Office 2007 onward, the suite embeds itself deeply into the Windows registry, activates via product keys tied to hardware IDs, and installs shared components (like the Proofing Tools and OLE servers) system-wide. : IT professionals use the Office Deployment Tool
If a standalone, offline, no-installation office suite is a strict requirement, LibreOffice Portable is the open-source standard. From Office 2007 onward, the suite embeds itself
Many users want a — meaning Office that runs directly from a USB drive without installation, leaving no traces on the host computer. This is ideal for IT technicians, students, or freelancers who work on multiple PCs.