Are you trying to or just looking for a free video editor ? Download QuickTime 7.7.9 for Windows - Apple Support
Support for legacy formats like QTVR, interactive movies, and MIDI files. Important Security Advisory QuickTime-7-Pro-Registration-Keys-Full-Version-Download
Apple discontinued support for the Windows version in 2016 due to critical security vulnerabilities that will never be patched. Are you trying to or just looking for a free video editor