If you have a computer that you share with family members or other users, you may want to create a unique account for each person. A unique user account allows each user to have their own desktop, bookmarked sites in Internet Explorer and other personalized options. A new user account can quickly and easily be added to a computer. Whether you have Windows XP, Windows Vista or Windows 7, the process if fairly similar and easy to complete.
Log on to your computer using an administrator account. This is the account that has privileges to make changes to the computer. If you only have one user account, then that is your administrator account.
Use the "Start" menu to go to the "Control Panel" in Windows XP, Vista and 7. For Vista and 7, click on "Classic View" on the left panel of the screen.
Click on the "User Accounts" icon to see all of the user accounts and to create new user accounts.
Select "Add" from the "Users" tab in to add a user in XP. In Vista, click on "Manage User Accounts" and then "Add" to add a user. In 7, click on "Add or Remove User Accounts" under "User Accounts and Family Safety" to add a new user.
Follow the on-screen instructions from the user account creation wizard to finish adding a new user. Repeat this for as many new users as you want to add to the computer.
Mac users can add a new user by going to “System Preferences” > “Accounts” > “Add.”