New
#21
That BIOS update doesn't even have a full model number! I would never use some 3rd party download site with a partial model number.
You do not want to update the BIOS without knowing what you are doing or you can brick your PC. So let's start with filling in your PC specs in the bottom left corner of your post. We need your full model number.
The latest BIOS update should be listed at the official Gateway Support Downloads webpage for your exact model. Have you checked there yet? If there is a newer BIOS version you need to read the instructions carefully for updating it. There may be a ReadMe file in the download which needs extracting to read this. This should provide the instructions as well as an explanation of what the BIOS update does. You don't need to install it if it doesn't solve your exact problem.
Don't proceed until you are absolutely sure what you're doing. We have specialists here who can help you until you are certain.