True "portability" (running the game from a USB without installation) isn't officially supported, but can be achieved by:
Here is a short, useful story about a gamer named Alex who faced this exact situation—and how he solved it. The Story: The "Ghost" of the Strogg War was a fan of quake 4 cd key portable
Most modern PCs (and even many laptops) no longer include optical disc drives. If you own the original Quake 4 CD, you physically cannot install it without an external reader. Furthermore, the original DRM (SafeDisc) is no longer supported on Windows 10 and Windows 11 for security reasons. A portable version bypasses the need for the physical disc entirely. True "portability" (running the game from a USB