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How can 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 doctor, i was doing a thorough analysis then i restarted it after it lagged. Then this Operating System Not Found message appeared. So can you help on how can i get into the bios so i can repair the OS?

I know this thread is over a year old, but I actually got the same notebook from a friend and I’m reusing it as as NAS, and I was facing the same problem. My first attempt was unplugging ac, battery, and bios battery (at least 24h) but it didn’t resolve anything. Then I discovered why: UEFI and FastBoot are enabled, so your keyboard-interactions won’t work @ startup. So what is starting up? The Windows BootManager. Then I tried following: When you insert a windows installation media (DVD/USB) it WILL start this one up. When you get so far, try a FirmwareRepair (not necessarily) because /at least for me/ after inserting the Installation Media (!mportant that it is from Windows) I could enter the BIOS again, then changing from UEFI to Legacy/FastBoot-Disabled Hope this helps anyone who’s facing the same problem cheers!

turn on and turn off immediately on acer logo 3 time but at 4rth do not press power button again press f2 u will be in bios

Here is how to Open UEFI BIOS settings in Windows 10 1- Open the start menu. 2- Select Settings. 3- Next, select the Update and Security option. 4- Once the window opens, click on Recovery. 5- You will be able to see Advanced Start up. Under Advanced Start Up , click on Restart Now. 6- Click on Troubleshoot. 7- Next, advanced options. 8- Click-UEFI firmware settings 9- Finally hit Restart. Source:- http://merabheja.com/open-uefi-bios-sett…

How to access the recovery partition The recovery partition is available only if your partition is undamaged! If the partition is corrupt, use the recovery DVDs instead. Restart your computer Press F9 repeatedly before the Windows logo appears, right after the Asus logo appears Select Windows Setup [EMS Enabled] Follow the wizard steps

Download this file https://drive.google.com/file/d/1Wo7cS8y… Extraxt Format usb key using fat32 Put file into key Follow these steps: Battery OutAC outPress power button for 10sec and releaseInsert USB KEYPress and hold FN + ESCAC cord inPress Power and releaseWhen FAN is running at High Speed release FN+ESC.Wait till machine reboots or FAN stops running. Thank me Later.

My pc Acer aspire v5-431 error bios i can’t F2 for into boot my pc,how can i fix this problems?

I had exactly the same problem. Thank God I eventually solved it. Mine gave me a really tough time because I had formatted the HDD so I could not boot into windows to change the startup settings. I plugged the drive into another Acer laptop and tried installing the OS, which was successful but another problem showed up when I fixed it on my Acer - “operating system not found”. Luckily for me my Acer could boot the HDD of the other Acer laptop, which already had windows 8 on it. I boot into windows, clicked on “restart” while holding “shift” and bingo! It gave me the menu where I could select UEFI startup. I hope you find this a lil helpful. Cheers…

Several people here have said that Fast Boot completely disables keyboard interactions early in the boot sequence. This isn’t actually true; the keyboard interactions are still there, it’s just that, with Fast Boot, the early portion of the boot sequence is so fast that there’s almost no time to press the keys to get into the BIOS. You basically have to know the right key ahead of time and start mashing it furiously the moment you press the power button, and even then it’ll probably take a few times, but you should eventually manage to hit the key during that split-second window where it’ll get you into the BIOS setup. Proof: I eventually managed to get into the BIOS of my Aspire V5-122P (yes, I know it’s a slightly different model of Aspire V5 than the OP’s, but Fast Boot works the same on all Windows 8/8.1 machines) using the built-in keyboard (I was trying to get into the BIOS to disable Secure Boot so I could install Ubuntu 16.10 alongside Windows; I didn’t know at the time that Ubuntu has supported Secure Boot since 12.10).

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pour entrer au setup / bios / boot…. seulement brancher une clavier extern et ca march bien ==’''