The UEFI is the new BIOS Setup program, providing computer configuration at a low-level. Updating the BIOS can often cure common PC ills and some tough-to-nail-down problems.
- [Instructor] Your PC features a startup configuration tool called the UEFI. That weird acronym stands for Unified Extensible Firmware Interface. Informally known as the BIOS, the UEFI to UEFI provides an interface between the PC's basic hardware and the operating system. It also offers a configuration menu or shell where you can set basic hardware options. This movie covers how to access and use the UEFI and how to update the PC's firmware which is also referred to as updating the BIOS.
You can access the UEFI from the PC's startup menu or you can get there from the Window's recovery menu. The startup menu consists of a list of function keys you can press when the PC first starts. The list is shown briefly so you must be quick to catch and press a key. As an example, my office PC lists three function keys I can press. The F2 key enters the startup program, the UEFI. F7 enters the BIOS, which also runs the UEFI program. And F10 enters a boot menu, which list all media attached to the computer.
Some of which may contain a boot drive. These keys maybe different on other PCs. For example, the test PC here uses the F12 key. And some computers may not display any startup keys at all. That's okay because you can get into the UEFI from within Windows. This process works only when your PC features a higher security level than this system does. You access the UEFI from the Window's recovery menu which was shown in an earlier movie. The steps to take are to one, you choose troubleshoot.
Then advanced options. Then you'll see a button that says UEFI firmware settings. Choose that option and then choose restart. You don't need to hold any special keys in that instance. You just wait for the UEFI interface to show up. On this computer I pressed the F12 key and this is the menu I see. LEGACY BOOT, those are various boot devices. But what I want is the BIOS Setup which is really the UEFI. All of this information is rather complex. In fact, it's rare these days to access a UEFI to change routine settings.
Unlike the old BIOS, the UEFI is rather smart. Some items you may want to take note of are the motherboard's product name, it's version number, it's serial number. These items are necessary should you need to update the BIOS or apply a firmware update. On this computer I'm going to choose System Information. And here on the right you see detailed information about the computer. Including the BIOS version, A23, and the service tag, F16JZ12.
These numbers are important if I want to obtain a new BIOS for this system. So I'll write down this information. Just so I can keep it handy because I won't be looking at this the whole time or if you want to be lazy take a picture of the computer screen using your phone. When you quit the UEFI interface you may be asked whether or not you want to retain any changes. This question comes up whether you've actually made changes or not. So don't freak out if you made changes when you didn't. Just tell the computer not to save any changes. In this case I haven't changed anything.
I'm going to try to click exit and it should go ahead and just shut down. Good, wasn't asked that question. When it comes time to update your PC's BIOS or firmware you need to obtain an updated BIOS or firmware installation program from your computer or motherboard's manufacturer. This isn't an activity you set out to do because well you enjoy computer maintenance. No, you update the BIOS when you're required to do so. When I last did an update it was because my computer was randomly crashing and I figured a BIOS update wouldn't hurt.
The most important part about obtaining a BIOS update is to ensure that the update is specific to your PC's motherboard, model and version number. This is the reason why I recommended earlier that you take a note of those details in the UEFI program. For this computer I visited the Dell website. Right here. Dell manufactured the computer. I downloaded their detector program. I ran it. It determined which make and model I had so I really didn't need to write down the BIOS number and the service tag number, but it was good that I did.
And here is the update for the BIOS for this particular computer. To obtain it I click the download button. Once you download the BIOS update, specific to your computer, go ahead and quit all other programs because the update process restarts the system. So you don't want to leave any unsaved files lingering. Run the update program. If you're prompted with a UAC warning confirm that you want to run it. Follow the directions on the screen. The update is applied automatically so you just sit back and watch.
Upon success the PC's going to restart. You're going to see some text screen stuff possibly, but eventually what happens is the new BIOS or firmware is loaded. Now remember, updating the BIOS introduces your old friend change into the equation. Be on the alert for anything different after you update the BIOS. If trouble does occur, it was probably the BIOS upgrade that initiated the problem. At that point you must contact the manufacturer for further assistance.
- Diagnosing the causes of PC issues
- Troubleshooting hardware and software
- Performing startup and system restore steps
- Accessing the Task Manager
- Using the Registry Editor
- Fixing Windows
- Maintaining storage drives
- Restoring network connectivity