My Poser run-time on C:, is minimal. Just the basic suite. My ½TB CAD archive on E: is reasonably organised, with many, many folders and sub folders. Each Poser whatsit or set has a 350x350 thumbnail, a meaningful name, the original zip etc and, where appropriate, a mini-run-time. I add WIP needs via the 'external library' facility, off-load when done...

To put it politely, I find Windows File Explorer's search engine is much, much friendlier than Poser's...