Speed up your sluggish computer
A few easy -- and free -- tweaks can help rev up your old machine, so you won't have to rush to buy a new one.

The PC fix: Use Disk Cleanup (search for it via the Start menu) to get rid of files. Click More Options to delete programs.
The Mac fix: Drag apps or files to the Trash. Also delete an application's support folder, found under your user name: Places: Library: Application Support.
NEXT: 2. Clean up the desktop