So I've had my PC for a couple years now but i've finally put it to its limit. I have no more disk space on my C: drive and I don't even know where the D: drive is located. I don't think I have one because I only see one drive in my computer. I need help creating more space. Can I buy any type of drive to boost up my memory or do I have to stick with a duplicate on like the one on my drive? What else can I do to increase memory. N E thing helps.