[header] How to clear the memory on your computer's hard drive [title] Delete old files. [step] Old files that you no longer use or need will take up space that can really slow your computer down and clog up the memory in your hard drive. [substeps] First locate your downloads and documents folders. 
This is where a lot of your computer's memory is dedicated. Locate files in each folder that you no longer need and move them into your trash.