BIOSunlock password. Hi! Can someone help me unlock my BIOS because I can't access my computer. It asks for my password but rejects me every time. From there it asks me to enter Unlock Password but I don't know it. I tried the BIOS code generator but it doesn't work. My key is 1085852159 and the model is A715-71G-73Q8. Pleasehelp. Edit: So the way to get BIOS or the Boot menu open, you need to hold shift while you restart your computer. Then you can select boot options. It'll restart your computer and boot to BIOS. This worked! ESC is another popular one. TheTC-120 uses the Delete key to enter the BIOS. They are likely just getting the timing wrong. Click on "Like" if you find my answer useful or click on "Yes" if it answers your question. Thanks billsey. I realized that only “del” works to enter bios on this acer. Navigateto your Windows start menu and select “Settings” located on the left panel. You can also access your Windows setting by using Windows shortcut keys Windows + I. Step 2. Select “Update & security”. Within this window, you may need to scroll down to find the “Update & security” button. Step 3. Howcan i enter the Bios of my Acer Aspire v5 431-471 laptop? I would like to repair the OS. BTW, the OS is Windows 8. This happened when using tune up disk 1 Turn on your Acer Aspire 5542G laptop. You may need to press the power button if the laptop does not power up automatically. 2. Press the "F2" key as soon as the Acer logo appears on the screen. This will enter the setup utility. 3. Use the arrow keys on your keyboard to navigate through the setup menu. 4. Tipsto Access Acer BIOS. The Acer BIOS (basic input/output System) is part of the Acer boot menu. You can define the devices to use, boot order, and settings for BIOS-related functions in the BIOS Settings menu. The Acer BIOS key most frequently pressed to access the BIOS Settings menu is F2. Answers Assuming that the boot section of your BIOS chip can still read a bootable USB drive, I suggest that you remove both the battery and the charger. Then press and hold the power button for a minute or so. Replace the battery and charger and cold boot while immediately tapping F2 even with a black screen. ZwXB.