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Reset cmos on N550j?

My son set the bios password and forgot it

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2 Answers

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  • ASUS Master
  • 27,725 Answers

Restart your computer repeatedly tapping the f8 key to enter safe mode while the screen is black once in safe mode where the only things working will be your keyboard and mouse allowing you to attempt to repair your computer
As the computer is booting repeatadly press the F8 key as the computer is booting

If done properly the user should get to a screen similar to the below screen.
Select the option for Safe mode command prompt only
Windows Advanced Options Menu
Please select an option:
Safe Mode
Safe Mode with Networking
Safe Mode with Command Prompt
Enable Boot Logging
Enable VGA mode
Last Known Good Configuration (your most recent settings that worked)
Directory Services Restore Mode (Windows domain controllers only)
Debugging Mode
Start Windows Normally
Reboot
Return to OS Choices Menu

Use the up and down arrow keys to move the highlight to your choice.

select safe mode with command prompt

Then type at the C:\> prompt: type

DEBUG

and hit Enter. You'll see a dash (-) at the DEBUG prompt. Now type:

o 70 2e

which will show as -o 70 2e at the DEBUG prompt. Hit Enter. Then type:

o 71 ff

and hit Enter.
Finally type:

Quit

and hit Enter one last time to quit DEBUG back to the C:\> prompt.
Now you're ready to reboot your PC, and press the appropriate key or key
combo (look it up in your motherboard manual if you don't know it) to access
your BIOS Setup.

Youll notice the password is gone.

If this fails try typing

At command prompt type debug
you will get a - prompt where you can type the following (<enter> means press enter, not type enter*)

A <ENTER>
MOV AX,0 <ENTER>
MOV AX,CX <ENTER>
OUT 70,AL <ENTER>
MOV AX,0 <ENTER>
OUT 71,AL <ENTER>
INC CX <ENTER>
CMP CX,100 <ENTER>
JB 103 <ENTER>
INT 20 <ENTER>
<ENTER> just hit enter on this line
G <ENTER>
Q <ENTER>

Basic BIOS password- works 9.9 times out of ten

If this fails you will need to

Select safe mode with networking to download
you could download all of these or just one save them to a usb drive for later use if one fails to remove the password

http://www.tech-faq.com/reset-bios-password.html

At some stage you might need to press Ctrl+Enter rather than just Enter if on a Dell Latitude E5410

http://majorgeeks.com/CmosPwd_d239.html
A CMOS BIOS password recovery tool
Editors note: This tool should only be used by experienced computer users.

Please see the enclosed read me if you would like to run it from Windows.
Failure to follow instructions (from Windows) will cause your anti-virus to flag this as a virus.

Posted on Mar 26, 2014

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  • Contributor
  • 8 Answers

Try software to reset your cmos password.

Posted on Mar 26, 2014

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6 Suggested Answers

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Posted on Jan 02, 2017

  • 68 Answers

SOURCE: boot

Since you forgot the password best thing to do is make the cmos forget it. The way to do this is remove the cmos battery. Take it out for several hours then put it back in. This will reset the cmos and you should gain access.

Posted on Sep 20, 2007

  • 1 Answer

SOURCE: reset bios password of acer aspire 5720 notebook

i had same problem and i started to worry but then i tried doing it in capitals and for some reason it worked have u tried doing it in capitals?

Posted on Jan 17, 2009

  • 1 Answer

SOURCE: Cleaing CMOS Password

WhoDoctorK9's bios reset worked on 6715b notebook.
Thanks!

Posted on May 24, 2009

shibuda
  • 1812 Answers

SOURCE: how to reset cmos &

Hi,
Switch off your pc ,open the cpu cover,
Remove the CMOS battery , and hold on Powre switch for few seconds.
BIOS - The setup program used in desktop and laptop computers/PCs - Page 1 of 2
Set up Bios load fale save default .or can do help from the following bellow the link.
Phoenix BIOS setup and help
re install the cmos battery.
Hope this helps.
.

Posted on Jan 16, 2011

ghost2233
  • 3606 Answers

SOURCE: Please can you tell me how to reset the cmos on a samsung R510 Laptop

Hello you just have to remove the cmos battery:


10_18_2012_1_51_22_pm.gif
Press the release pad and the battery will pop out
DO NOT have any power on disconnect all power and usb cables
when you do that.

Wait for 10 min. or so with the battery out
and the bios will reset back to factory settings.

Replace the battery and boot up your machine and enter the bios
you kave to configure the boot order.

Here is some youtube videos how you do that:

http://www.youtube.com/results?search_query=Intel+D945GTP+bios+setting&oq=Intel+D945GTP+bios+setting&gs_l=youtube.12...55167.59517.0.61846.6.6.0.0.0.0.85.411.6.6.0...0.0...1ac.1j2.lSt1MwgqUkQ

But it depends what bios you have.

Good luck

Posted on Oct 18, 2012

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1 Answer

Laptop SONY VAIO VPCEB32FM: how to remove BIOS password


The BIOS password is probably the Power On Password.
This method may not work. Remove the BIOS battery for 20 mins until the charge in the BIOS is depleted. Insert the BIOS battery go into the BIOS setting and set the Date and Time etc.
If this does nor work then the BIOS password is stored on an EEPROM chip and removing the BIOS battery won't work and there is probable no backdoor passwords.
The Sony support maybe able to offer a solution, check the support WEB site..

May 23, 2012 | Sony vaio vpceb32fm/w Notebook

1 Answer

I m having trouble with my SONY VAIO (VGN-FE770G). i forgot my bios password. kindly send me a solution.


The most common way that we know on how to reset or clear the BIOS password is to physically remove the power from the computer by disconnecting the power plug and then removing the Cmos battery for 30 minutes from the motherboard. Another way is to reset the clear CMOS jumper on the motherboard itself. Both of the 2 methods mentioned works because most motherboards use a battery to sustain the BIOS/CMOS settings for the motherboards PROM chip. So by cutting off cmos the battery power, the BIOS/CMOS settings will be erased. Hope this helps

Jul 03, 2011 | Computers & Internet

3 Answers

Hello, My name is Vahe and I have got the following problem, I have forgot my BIOS password and I can't to turn on. Laptop model Toshiba satellite A200-13M. So I have got some solution to delete...


The most common way that most of us know on how to reset or clear the BIOS password is to physically remove the power from the computer by disconnecting the power plug and then removing the cmos battery for 30 minutes from the motherboard. Another way is to reset the clear CMOS jumper on the motherboard itself. Both of the 2 methods mentioned works because most motherboards use a battery to sustain the BIOS/CMOS settings for the motherboards PROM chip. So by cutting off cmos the battery power, the BIOS/CMOS settings will be erased. Hope this helps

Jun 02, 2011 | Toshiba (K000002020) Motherboard

1 Answer

Son left home for a job left his PC behind was going to give to younger child has system password (that Older son forgot)


If he set a password in the BIOS, this can easily be solved by unplugging the computer from the wall, opening it up, and removing the CMOS battery (a flat, lithium "button cell" battery on the main system board inside), for 30 seconds before putting it back.

If this is a Windows password we're talking about, it may be tricky getting inside. Since you're giving it to someone else, why not locate the Windows Recovery Disks, and boot the computer up with them in the driver, re-install windows? Might be safer in the long run, as it will erase everything, and give the child a computer with a clean slate. Unfortunatly, if this is done- then everything your son saved on the computer will be erased clean, and be unrecoverable.

Dec 26, 2010 | Intel Computers & Internet

2 Answers

ACER default password for Bios


Hi,

By default Acer wont enter any BIOS password however, if you have forgot BIOS password then you have to reset CMOS jumper setting. Please follow the below steps: Open the Laptop back panel. Locate the CMOS battrey, remove it & then with the help of a screw driver keep on pressing the terminal inside it and turn ON the computer for 10 secs and Turn Off (make sure you keep on pressing the terminal with a screwdriver while turning ON). It will short the BIOS setting. Now, fix the CMOS battrey & restart the computer. This will take care of the issue.

Thanks and regards,
Jitha

Nov 24, 2010 | Acer Aspire 5920-6423 Notebook

1 Answer

My son put a password on my notebook now he forgot it is there a way i can unlock it


At start up press continously F1 and at BIOS settings disable or reset to default.F10 to save and exit.
Post backk!

Oct 25, 2010 | Lenovo ThinkPad T61 Notebook

2 Answers

Son forgot password on acer netbook how do i reset to an earlier time?


Download "ERD commander", below is the link

Rapidshare Link

Megaupload Link

Easy-Share Link

You can use any of the above link. Extract the file using Winrar and burn the ISO images in a CD.

Boot your system using that CD (Set the first boot device as CD-DVD Rom in your BIOS).

You can easily set a new password using the tools called "Lock Smith"

That's it.

Feb 03, 2010 | Computers & Internet

1 Answer

I want to reset bios password.


what you need to do is to remove the CMOS BATTERY for some seconds/minutes and then replace it. This brings your machine to default settings and then you can enter a new bios password.start your computer then press F10 for setup/Delete for other machines and then go to bios settings and set a new bios password.In addition to this you can also clear the bios password by removing the shunt on the cmos jumper then plug it other way round, remove it again and then plug it as it was at first.

Feb 01, 2010 | Acer Extensa 4620-4648 Notebook

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