1. Run a complete backup
Before you start deleting files, it's a good idea to back up your system. Many backup programs allow you to create a mirror of your hard drive on an alternative disk. This is a good way to prevent loss of a file should you mistakenly delete something. If you choose not to perform a complete backup, at minimum protect important personal, school and work files.
2. Organize your documents
Sometimes we give files names that aren't recognizable or that we don't remember. Alos, people often store documents in untitled folders or other out of the way places that are hard to track down. This can make it difficult to find files when you need them again. Take this time to implement a logical naming and archiving system that works for you. De-clutter your virtual workspace by placing desktop files in appropriate folders.
3. Delete what you don't need
As you're going through files, ask yourself whether you really need them. If there's no chance that you're ever going to use something again, delete it. In addition to getting rid of unnecessary documents, examine your hard drive for programs, downloads and other items you don't use. Throw away unused/unneeded items to open up space on your computer. If you find it hard to part with digital files, at least move them to an alternate archival drive where they won't mess with the performance of your computer.
4. Establish order online
Staying on top of all of our websites and online accounts that can seem difficult. Using tools on your computer you can organize your online life. First, make sure your bookmarks are in order by making any site additions and deletions that reflect your current browsing habits. Organize bookmarks in an natural way so that you can easily find sites you regularly visit.
5. Organize email
First, delete any messages you don't need. Establishing clearly identifiable folders - rather than leaving mail bunched together in your inbox. Update your contacts list so that you know you have the addresses you need without the added clutter of old contacts.