its just had its power supply fixed and the it is only when i put the disk in to burn it just shuts off wat is an os i am new to tthe computer world so keep it simple thanks this is going to be so frustrating for you to as well
its just had its power supply fixed and the it is only when i put the disk in to burn it just shuts off wat is an os i am new to tthe computer world so keep it simple thanks this is going to be so frustrating for you to as well
OS is Operating System, in your case Windows XP. But your problem appears to be hardware related, since your PSU was replaced (Power Supply Unit).
Talk to whoever replaced it.