A burner has nothing to do with it, a burner is what write to a CD. I do hope you have a CD drive, because if what I tell you to do doesn't work, you will either have to try a system repair, which will repair the system and not delete anything, but if that doesn't work you will have to reinstall windows, which is what I had to end up doing when my computer was in a loop reboot.
So here is what I want you to try first, while in safe mode try a system restore point, going back to a day before this problem, accord. To get into system restore, click start, all programs, accessories,s system tools, system restore, choice a restore point.
If that does work here are the steps for a system repair, you will either need a windows CD or the CD's that came with your computer.
Configure your computer to start from the CD-ROM drive. For more information about how to do this, refer to your computer's documentation or contact your computer manufacturer. Then insert your Windows XP Setup CD, and restart your computer.
1.
When the Press any key to boot from CD message is displayed on your screen, press a key to start your computer from the Windows XP CD.
2.
Press ENTER when you see the message To setup Windows XP now, and then press ENTER displayed on the Welcome to Setup screen.
3.
Do not choose the option to press R to use the Recovery Console.
4.
In the Windows XP Licensing Agreement, press F8 to agree to the license agreement.
5.
Make sure that your current installation of Windows XP is selected in the box, and then press R to repair Windows XP.
6.
Follow the instructions on the screen to complete Setup.
If this doesn't work then you will have to reinstall windows.