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Anonymous Posted on Sep 06, 2014

How to bypass password request when pressing f2 on an acer 4720?

When I press f2 during boot I get a request for password. I bought this laptop new some years ago and I never set a password. I want to change bios to boot from the cd drive???

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arnel espaltero

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  • Contributor 25 Answers
  • Posted on Sep 07, 2014
arnel espaltero
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Joined: Mar 11, 2008
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Good Day!!
Follow this advice but you have to be careful because it may create further damage....

The simplest way to remove a BIOS password is to simply remove the CMOS battery. A computer will remember its settings and keep the time even when it is turned off and unplugged because these parts are powered by small battery inside the computer called a CMOS battery. If we pull out this battery, the computer will forget alot of its hardware settings, including its BIOS password. This should not be performed on Laptops if you are not experienced working with laptop hardware.

Make sure to power down the computer, unplug the power cables . The computer must not be able to get power from anywhere for this to work. Take out the CMOS battery and wait 5 - 10minutes before putting it back in. The reason for this wait is because the computer can still store power in its capacitors even though everything is unplugged. The waiting period allows enough time for them to discharge.

Plug everything back in, power up the computer and enter the BIOS again. If everything went well there should be no more password. In some cases, if you get weird error messages during bootup now, you will need to goto "Load BIOS Defaults" in BIOS and save the changes to fix them.

Hope it will help you.....

5 Related Answers

Anonymous

  • 1 Answer
  • Posted on Oct 10, 2008

SOURCE: Boot sequence / bios password issues with Acer Aspire 5100

The finger print bull is how that password came up for me and they want a 125.00 to remove it. I called the better business bureau and filed a complaint. They shouldn't have any right to control your laptop. I to have a 6292 , took it apart as far as I could and could not find jumper or password. This is a gimmick to make money.

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Anonymous

  • 2 Answers
  • Posted on Dec 13, 2008

SOURCE: Boot sequence / bios password issues with Acer Aspire 5100

Hoping you are using some version of windows OS. Go to safe mode... press the power button to boot and while booting keep pressing F8 which will allow you to go to safe mode and reboot the machine if you are able to sucessfully able to go to safe mode. Now boot to normal mode as usual boot. If you still notice BSOD(blue screen of death) then once more go to safe mode and uninstall the new softwares if you have installed any on your laptop recently like graphics device driver or audio driver so on.... if you are not sure of new softwares installed.. use system restore method in safe mode to restore the system to older date it should resolve your problem. system restore tool of windows will be in start-> program -> accesories-> system tools-> system restore.

Anonymous

  • 70 Answers
  • Posted on Feb 25, 2009

SOURCE: setup password lost in an Acer Aspire 9410 laptop

The best way to this is to reset the cmos on the motherboard of the Laptop. This will reset the bios password.
To do this unplug all power from the unit and remove the battery. Remove the cover from the laptop so the motherbard is exposed. Look for the cmos battery (about the size of a nickel) and remove the battery for about 30 mins and then replace. Reassemble your laptop and you should be good to go.

naebarbat

Barbat Nae

  • 509 Answers
  • Posted on May 13, 2009

SOURCE: acer aspire 3690 bios password

remove CMOS battery for 20-30 minutes.
OR YOU CAN TRY ONE OF THESE PASSWORD:

http://www.freelabs.com/~whitis/security/backdoor.html

Anonymous

  • 84 Answers
  • Posted on May 19, 2009

SOURCE: acer travelmate 4230 bios password

This information is intended for experienced users. It is not intended for basic users, hackers, or computer thieves. Please do not try any of following procedures if you are not familiar with computer hardware. I'll not be responsible for the use or misuse of this information, including personal injury, loss of data or hardware damage. So use it at your own risk.
A. By Using the Motherboard Jumper:
In most motherboards CMOS battery is soldered, which makes it difficult to remove the battery. In this case we use another method.
Almost all motherboards contain a jumper that can clear all CMOS settings along with the BIOS password. The location of this jumper varies depending upon the motherboard brand. You should read your motherboard manual to check its location. If you don't have the manual then look for the jumpers near the CMOS battery. Most of the manufacturer label the jumper as CLR, CLEAR, CLEAR CMOS, etc.
When you find the jumper, look carefully. There will be 3 pins and the jumper will be joining the center pin to either left or right pin. What you need to do, is remove the jumper and join the center pin to the opposite pin. e.g. if the jumper joins center pin to left pin, then remove it and join center pin to right pin. Now wait for a few seconds and then again remove the jumper and join the center pin to left pin.
Make sure to turn the PC off before opening the cabinet and resetting the jumper.

B. By Using Software:

I have found that BIOS/CMOS Password Recovery Tool is the most effective.:
BIOS/CMOS Password Recovery Tool is a program that works instantly to remove any lost or forgotten BIOS/CMOS password. Simply boot your PC to DOS and execute the program, and get access to forgotten BIOS/CMOS passwords in just seconds
BIOS/CMOS Password Recovery Tool Service: http://www.biospasswordrecovery.com/

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Steps for Clearing BIOS Password Check

If users set BIOS Password ( Supervisor Password and/or User Password ) for a security reason, BIOS will
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Below is the picture showing the location of the jumper next to the memory module slots. This is the jumper connections that have to be "shorted".


8db5855.jpg
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After you enter BIOS, go to the Boot tab and down to "Security" and make your changes there.
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