So my computer overheated due to lack of cleaning, after it shut down once, I cleaned it with canned air to get the dust out but after that my computer would not display anything. What I did after that was to flash the cmos battery and move the graphics card onto a different PCIe port which made it work, after that every time I would turn on the computer, it would show as if I didn't have Windows installed, telling me to press any key after inserting a proper boot device. I couldn't even repair it from the recovery disk because it says that I am lacking certain drivers and need to insert them. I was at my wits end and decided to reinstall windows but it gives me the drivers problem as well. What do I do?