The free version of Lightworks exports to 720p (watermark-free) and offers a 32-bit installer. It was used to edit The Wolf of Wall Street . It is highly stable on old hardware, though the learning curve is steep.
Searching for "Adobe Premiere Pro CS6 portable 32 bits" is a temporary fix. The reality is that video editing is a 64-bit task. adobe premiere pro cs6 portable 32 bits
The most important technical fact is that Adobe Premiere Pro CS6 was designed as a application. Starting with CS5, Adobe optimized the software to handle the heavy RAM requirements of modern video editing, which 32-bit systems (limited to roughly 3.2GB of usable RAM) simply cannot manage. The free version of Lightworks exports to 720p