Method 1 Method 1 of 4: Finding the BIOS Version on Windows Computers Using the Command Prompt

1. 1 Click the Start menu, and then click Run.
   • In Windows 8, right-click the Start menu, and then click Run. You can also access this menu by pressing the WIN + X keys.
2. 2 In the Run dialog box, type cmd.
3. 3 The Command Prompt window opens.
   • The Command Prompt is a program lets you control your computer with text commands.
   • Type wmic bios get smbiosbiosversion. The string of letters and numbers following SMBBIOSBIOSVersion is your BIOS version.
4. 4 Write down the BIOS version number.

Method 2 Method 2 of 4: Finding the BIOS Version on Windows Computers Using the BIOS Menu

1. 1 Reboot your computer.
2. 2 Open the BIOS menu. As the computer reboots, press F2, F10, F12, or Del to enter your computer BIOS menu.
   • You may need to press the key repeatedly, as boot times for some computers can be very quick.
   • Find the BIOS version. In the BIOS menu, look for text that says BIOS Revision, BIOS Version, or Firmware Version.
3. 3 Write down the BIOS version number.

Method 3 Method 3 of 4: Finding the BIOS Version on a Pre-Installed Windows 8 Computer

1. 1 Restart your computer. While the computer reboots, press and hold the Shift button until you see the boot options menu.
2. 2 Open the Troubleshoot menu. On the boot options screen, click Troubleshoot.
3. 3 Open UEFI Firmware Settings. On the Advanced options screen, click UEFI Firmware Settings.
   • If you don't see UEFI Firmware Settings, your computer didn't have Windows 8 pre-installed, and you'll need to get the BIOS version via the command prompt or the BIOS menu.
4. 4 Click Restart. The computer reboots into the UEFI firmware settings screen.
5. 5 Look for the UEFI version. Depending on your computer hardware, you'll see different information. The UEFI version will usually be under the Main or starting tab.
6. 6 Write down the UEFI number.

Method 4 Method 4 of 4: Finding the Firmware Version on a Mac

1. 1 Open About This Mac. Click the Apple menu, and then click About This Mac.
2. 2 Get the Mac system report. Click More Info, and then click System Report.
3. 3 Get the Boot ROM Version and the SMC Version. Under Hardware Overview, write down the Boot ROM Version and SMC Version (system).
   • The Boot Rom Version is the software that controls the Mac booting process.
   • The SMC Version is the software that controls the power management on the Mac, such as when it goes to sleep.