It shouldn't cause more problems as long as you keep a copy of the two directories, my warning was aimed at not having you delete the directories (which is what I often do while making parts with the production directories safely copied elsewhere) and losing your work. Fritzing (at least for me) is perfectly happy to start using the old directories again once I move them back in to place, It keeps most of its user based files in those two directories (there are also some true temp files in local\Temp but I don't think they are used past the current session and I have never had to delete them although ccleaner will do so.) so it may be worth a try. I just now fired up a Win10 disk on my second machine (I love swappable disk trays 
) to see if I can reproduce the search problems other folks are having on Win10 so I may have more news a bit later. If you can, you may want to export all your created parts as fzpz files and back them up to for instance a thumb drive so you have a copy completely independent of Fritzing (I worked in a University data center for 20+ years and am paranoid about backups because they are out to get me and I've seen a number of bad disasters.
Peter