If you’ve ever created a user account for someone else so that they could access your computer, you’ll have user account files for that person stored on the hard disk. If that person no longer accesses the computer and doesn’t need the files they created, you can safely delete both the account and the files.
Here’s how to do both:
1. Click Start | Control Panel.
2. Under User Accounts and Family Safety, click Add or Remove User Accounts.
3. Click the account to remove.
4. Click Delete the Account.
5. Click Delete Files.
6. Click Delete Account.
If the account had a lot of user data, you may want to empty the Recycle Bin again.