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May 11th, 2015 11:00

Inspiron 3646, Reset Bios?

Hi, how do you reset the bios ? i can´t use te F12 or F2 key....

4 Operator

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20.1K Posts

May 11th, 2015 14:00

You should have said why you cannot use the F2 key. Try this-- reboot the computer and immediately start tapping the F2 key without waiting for any screen. Today's computers boot so fast that the key press cannot be timed correctly. Keep tapping the F2 key. 

You should not change the boot order in the bios. That is now done by tapping F12 the same way to get to the boot menu so you can select the boot drive. 

Explain why you want to reset the bios.

July 16th, 2015 08:00

no it's not working.

actually my desktop is ubuntu based and i want to install windows 8.1 but it's not going to bios through f2 or f12. just a blank screen is coming after pressing these keys.

also after detaching the hdd from desktop, the key is still not working. i have tried to connect keyboard, front and back side also.

10 Elder

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44.3K Posts

July 16th, 2015 12:00

Have you tried clearing BIOS?

  1. Power off, unplug
  2. Press/hold power button for ~15 sec
  3. Open case and remove motherboard battery
  4. Press/hold power button for ~30 sec
  5. Reinstall battery (right-side-up!)
  6. Close case and see if F2 works now

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