Windows operating system is a very fantastic operating system by dint of which you can complete many technical tasks very easily. You can access many applications for your purpose. You can also access internet on this operating system smoothly. But sometimes while you try to access internet and try to open some website, you will get BIOS error 69 in Windows. The error 69 in Windows is a very critical error issue due to which you will not be able to go ahead with the internet. So it is very important to fix Windows BIOS error 69 in the computer to get rid of any unwanted prompting. You can go with some manual method or you can also fix the problem automatically using Advanced System Repair tool in the computer.