if you upgrade the motherboard and the os you are using is oem or was upgraded from oem, then you will have to purchase a new operating system. you must replace the mb with the exact same model if you want to keep the current os.
Hello there! Just have a question for all you computer pros out there. About six months ago my neighbors house was struck by lightning causing it to go through the cable line. It wiped out my modem (which is replaced), and wiped out my ethernet port on my desktop. I am currently using a WiFi adapter to access the internet. So I was wondering, cause I know my port is done for, but should I buy a replacement mother board, or should I get an upgrade? I have an MSI 785GM-P45, and if I should upgrade, what should I, and/or what can I upgrade to? Thanks for any answers regarding this matter.

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