I have an old Dell CPT Lattitude,that I would like to change the OS from Windows 2000 to Windows XP. I am not having any luck install XP. I get the error message that an OS is already instaalled and I should use a dual boot system,which I do not want to do. I want to ger rid of 2000 and install XP. I need to know what to do to accomplish this goal thanks for your help.

Regards

lriecks1