So, I noticed my C-drive increased by 10 GBs at some point. I recently added some RAM, increasing from 8GBs to 16GBs, but I wouldn't think that would increase the data on my C-drive. Also, I recently had a Windows update, but I've never had one that added 10GBs. So, I am at a loss at what could be causing this. I didn't notice it until after the update though. Any ideas?