Here are the bullet points from
HERE
- Most of your profile settings and My documents are stored in a directory under C:\document and settings\
- There can be many profiles on a single computer, and they are loaded when you login to the computer.
- The problem is that you don't know why your profile can't be loaded. There would be any number of things wrong.
One sure fire way to fix the problem is to do the following.
1. Login to the computer as someone else that has administrative privledges.
2.
Backup anything you need to keep by browsing to c:\documents and settings\<my username>\...
and coping that data to another safe place on your hard drive.
3. Right click on my computer, click properties, under the advanced tab you'll find User Profile settings.
This might be in a slighly different spot depending on what version of OS you are running. You'll need to delete your profile.
4. When you loggin again, it will create a brand new profile for you.
5. Copy the stuff you
backed up into your profile directory again.