I replaced my motherboard because my old was defective and had to be replaced.I have an OEM copy of Windows 7 do I have to do complete re install or what I am really confused
If the replacement motherboard is the exact same make and model, then all you might have to do is phone Microsoft to get the activation key. If you used a different (upgrade) Motherboard, then you might need to purchase a new license, as well as possibly doing a clean install.
^ I've never seen anyone have to do that. Most of the time you call them and explain your old motherboard died, that model couldn't be found anymore, and you replaced it with a different one. Then they pass it through just fine.
If the replacement motherboard is the exact same make and model, then all you might have to do is phone Microsoft to get the activation key. If you used a different (upgrade) Motherboard, then you might need to purchase a new license, as well as possibly doing a clean install.
The replacement motherboard isnt the exact same because they dont have anymore of the same motherboard so they gave a similar mobo though different model
^ I've never seen anyone have to do that. Most of the time you call them and explain your old motherboard died, that model couldn't be found anymore, and you replaced it with a different one. Then they pass it through just fine.
Can you tell what number to ring I'm in Australia by the way do I have to do a clean re install