1. Computer constantly says that my C drive is running out of memory space. I have deleted Apps i don't need but the problem remains. I have 2 other drives D & F which are fine. Windows 10. 2. I have a large library of photographs (I'm a keen wildlife photographer). Thumbnails will not display despite following recommendations to fix it. This is very frustrating when Im working on my photo library. 3. PC is a specific build I had done in 2018.