I have built a new system with windows 8 and registered my asus motherboard. However windows had a few errors and I had to do a fresh install, I got the pop up windows asking me to register my product so I went to the website to find my motherboard is still registered. I was going to unregister this product but it says I will not be able to register it again. How do I let the system know my motherboard has been registered?.. Because it happens every time I log in