If you cannot upgrade to a 64-bit version of Windows, you still have legitimate options for video editing:
Putting it all together: We are discussing a modified, unofficial version of a 2012 video editor that is hard-limited to 4GB of RAM usage, designed to run without installation on aging hardware. adobe premiere pro cs6 portable 32 bits
Please note that using a portable version of software may have limitations and potential risks, such as: If you cannot upgrade to a 64-bit version