If you reinstall Windows or move to a new PC:

CyberLink PowerDirector is a popular video-editing suite known for fast rendering, intuitive timeline tools, and a rich library of effects, transitions, and templates. Content packs expand PowerDirector’s creative options with new titles, transitions, particle effects, LUTs, and elements. This post explains what a “repack” of a content pack is, the pros and cons, legal and safety considerations, and safer alternatives for getting extra content.

DirectorZone is CyberLink’s user-uploaded library. Millions of free effects exist here.