Bad CC - Instructions on how to find it and how to get rid of it (including list)

Hi, I'm in need of some serious help !!! I haven't found anything in the forum to help me with my problem and I'm starting to get desperate so I thought maybe you could help ! I have downloaded some sims from the exchange and I have now some unwanted replacement skins that I can't get rid of. I deleted the CC that came with those sims, deleted the cache files and the DCBackup files before running the game. Nothing gets rid of the replacement skins and I don't know where they are installed on my computer. Please help ! Thank you !