My Windows XP could not validate
I have a legal copy of Windows XP. But I receive a balloon from my task manager that says the copy of my Windows is not genuine. So when I try to validate it, the validation could not be complete. Why does it fail validation? I have the product key with me and when I bought my computer, the original Windows XP disk is also installed on my computer.
Now my whole desktop is black in color.
How can I validate it? Help please.








