I have a PC desktop running Windows 7 and Photoshop CC. It is over 8 years old, and has 12.0GB of RAM. Its hard drive has 49.3GB free out of 931GB, and it runs a NVIDIA Quadro NVS 295 (also AMD Radeon HD 5570) graphics card. The last time I shut down was last night. I have never run a cleanup program.