If you could get into normal mode, there are tools we could try to repair safe mode. Without being able to access your machine, a repair or clean install is the next step but you need an XP CD.
You may not even have one. By policy
Microsoft no longer allows OEM manufactures to include the original Windows XP CD-ROM on computers sold with Windows preinstalled. Instead, most computers manufactured and sold by OEM vendors come with a vendor-specific recovery disk
or recovery partition
for performing a clean factory restore
. Essentially, they will reformat your hard drive, remove all data and restore the computer to the state it was in when you first purchased it
. You will lose all data
and have to reinstall all programs that you added afterwards. This includes all security updates from Microsoft.
Check with Dell Support
to see what options they have for your particular make/model pc.
You also may be able to use a Windows XP bootable Floppy Disk
to boot from a diskette instead of your hard drive. If you don't have an emergency boot floppy, you may be able to use one created on another PC running Windows XP but there's no guarantee that it will boot your machine.