If you're a computer expert, you'll probably already know about these tips (hopefully this will provide you with a little reminder). If you're not an expert, don't worry - these tips are simple, and don't require a lot of computer experience.
While an old computer will never operate at the same speed as a newer (and bigger & faster) computer, you can help your computer stay as "young & healthy" as possible.
1) Disk Cleanup
Performing a disk cleanup regularly is a good idea. Whenever you "surf the internet", open attachments, delete files, your computer saves a record of your activity. Many of these files are harmless, and individually are very small. But if you spend a lot of time on your computer, before long you'll take up enough space to slow your computer down a bit.
Disk Cleanup is a Windows utility that helps keep unused and unwanted files from taking up extra storage space on your computer. You can think of it as "spring cleaning