I occasionally get a message that I am running out of memory, but checking my hard drive shows I have about 1.3 terabytes of available space out of the 1.75 terabyte capacity. So I thought the problem might be that I need to defragmentatate. I remember doing in with older versions of Windows but can't seem to find how to get to the Degrag feature on my current PC. An internet search said to open Programs, then go to Accessories, etc. but when I click on Programs on the Control Panel it doesn't give me any option of "Accessories". Can any of our wise computer literate members out there give me some advice on this? Thanks.