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I try to remove the password of these laptop and i can't, so i remove the CMOS battery and i try it again but the laptop won't boot, only the green light is on,what should i do?

What should i do to get it working again?

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  • Lenovo Master
  • 4,806 Answers

Hi.

Put the battery back in as a removed CMOS battery can actually keep the system from booting.


Regards.

Posted on Jan 01, 2013

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this is as if you haven't got an installed operating system and requires it to be installed, but you have to enable your cdrom as the first boot device. Put your O.S disc in and reboot; then press enter to boot up from disc.

Posted on Dec 17, 2006

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SOURCE: Advent 7110 bios password hell

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Posted on Apr 13, 2008

pbenke
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SOURCE: Removing CMOS battery on ibm r50e is not solving the pass problem

Removing battery or resetting BIOS with jumper will not help. You should call IBM for support on this issue. All thinkpads have a three year warranty, with either return to base or on-site service. Since the R50e is a recent model, you should have no problem getting it serviced directly by IBM. Toll Free: 1-800-IBM-SERV (1-800-426-7378)

Posted on Jun 25, 2009

mahhek
  • 657 Answers

SOURCE: How do I remove forgotten BIOS password?

1) You can reset BIOS to default settings by pressing <Alt><F>

2) I am not sure about the laptops, but in the Dell Desktops usually there is a reset jumper on the motherboard which is seated on 2pins out of 3, you just need to remove that jumper turn on the pc once and the turn on the pc again by reseating the jumper to its original place. You can try this with your laptop, I guess the jumper should be somewhere close to the CMOS battery.

3) Remove the battery and keep it away for atleast 30 mins. and replace it again.

NOTE: make sure while following step (3) and (4) the system should be completely turned off. Unplug the AC adapter, remove the battery and hold the power button for atleast 8 - 10 seconds.

let me know the output

Posted on Aug 29, 2009

  • 942 Answers

SOURCE: I am working on a toshiba satellite l355-s7915.

Yes of course all Laptop and Desktop have CMOS battery. Screw the back cover of your laptop locate the CMOS battery and remove to clear the BIOS password. Or else you can reset the CMOS by removing the jamper.

Posted on Mar 30, 2010

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I forgot my password for my Dell Latitude E6400, My Laptop loads the Dell Screen then it goes to a white screen that says "This Computer System #******* is protected by a Password Authentication...


You can remove or change the Window's User or administrator's password. You need access to a computer with Internet access to download the Hiren's Boot CD and burn it onto a CD. Then insert this CD into the laptop/computer and boot up the laptop/computer with the Hiren's CD and follow the instructions. There are very useful utilities CD and it a Linux boot CD which contains quite a lot of Utility programs including a password removal program. Click on one of these links to download HIREN'S BOOTCD :- http://www.hirensbootcd.net/ http://67.20.82.163/

Jan 10, 2013 | Computers & Internet

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Dell d340. need to enter admin password in bios to reorder boot sequence to accept usb first - its locked and i cant remember password. tried removing cmos battery and replacing but no good. help!


Try the backdoor password Dell

With a PSWD Reset Jumper Step 1Open the access panel to the password reset jumper if your Dell laptop has one. Consult your manual for the access panel's location. Some access panels have a tab you slide, while others are held in place with a screw.
Step 2Pry the plastic cover off the reset jumper with your fingernail. The reset jumper is a small pin port labeled "PSWD" with three pins. Put the plastic back onto the jumper over pin 1 and 2 instead of 2 and 3. Wait 90 seconds.
Step 3Pry the plastic off the reset jumper again and place it back onto the number 2 and 3 pins. Turn the laptop on. Repeat step 2 if the password is still present. Leave the plastic clip on pins 1 and 2 for a longer duration than last time.

Without a PSWD Reset Jumper Step 1Locate the reserve battery, also known as the CMOS battery, if your Dell laptop is not equipped with a password reset jumper. The CMOS battery's location varies among Dell laptop models. Consult your manual for the battery's location on your specific Dell laptop model. Many Dell reserve batteries are located underneath the main laptop battery. Remove the main battery and look for a sticker under it with instructions on removing the secondary CMOS battery.
Step 2Remove your Dell's reserve battery per the instruction manual or sticker located under the main battery. Removing the reserve battery resets the laptop's BIOS password. Wait 90 seconds, then replace the reserve battery. Reconnect the main battery.
Step 3Press the "Power" button to turn the laptop on.

Here is some youtube video with your problem:

http://www.youtube.com/results?search_query=dell+bios+password+reset+laptop&oq=dell+bios+password+reset+laptop&gs_l=youtube.12...2937.2937.0.5179.1.1.0.0.0.0.44.44.1.1.0...0.0...1ac.2.rXrXigbVpXM


Try also to call dell support in your country
They will be glad to help you out.

Good luck

Nov 08, 2012 | Dell Computers & Internet

1 Answer

Lost password...No help on internet so far for this model


There's only two ways to reset the CMOS battery on this laptop.One is to short out two solder points on the motherboard, which works on this model, as per this guide:
http://findpassword.net/reset-toshiba-satellite-bios-password/

The other is to contact Toshiba for support. They'll be able to help so long as you can prove ownership.

Oct 21, 2012 | Toshiba Satellite L15-S104 Notebook

2 Answers

My admin password i forget how can i open my pc without using hackin softwer thanks


you might try removing the cmos battery for 10 minutes or so Usually it does not take that long. This will set the pc back to original default settings, the date will be wrong also make sure you enter the right date before booting if you are able to enter bios after the battery. Make sure the unit is unplugged and if it is a laptop remove the main battery. the cmos battery is usually the size of a quarter.

Jul 07, 2012 | Computers & Internet

1 Answer

How can I get into the BIOS to change boot sequence when I don't have the password


Remove the power cord, remove the battery and then remove the CMOS Battery which is normally attached to the motherboard. Most times you will have to disassemble the laptop to get to the cmos battery. Once you remove it let the computer sit for an hour or so and it will forget the date, time and passwords without that cmos battery being in. Put the battery back in after time elapses then see what happens.

Mar 25, 2012 | Computers & Internet

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Removing cmos password on PCG-7134M


1. ) Contact Sony support2.) Providing your the legal owner of the laptop you can try download Hirens boot disk and use cmos clear utility.3.) If you have no fear of taking apart laptop you can try removing cmos battery.. although this method doesn't work on most newer laptops.

Nov 16, 2011 | Computers & Internet

1 Answer

I have a Lenova laptop and a intel MB I am having a problem. Trying to login but the supervisor password won't let me in no matter what i try Lenova G550 2958


When you boot up to the log in screen type in administrator as user to log in if you cant log in

during the boot up process you will see on the screen for a short amount of time press a certain key to enter set up press and hold that key during the boot up process to enter BIOS scroll down to set user password or supervisor password you can change or remove your password from there

also

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

Aug 13, 2011 | Intel Motherboard

1 Answer

Computer won't boot pass window screen. ..


if there is password when you start the system then switch off the laptop remove the battery then remove the cmos battery and place battery and switch on the computer then switch of the laptop and replace cmos battery and switch on the laptop the password will reset

Jun 02, 2011 | Computers & Internet

1 Answer

How can remove the cmos password


hi, if you know how to open a computer or laptop, just remove the cmos battery, it is a round shape silver battery just like the battery for wrist watch but its like 3 or 4 times bigger than the regular wrist watch battery,...just remove the cmos battery then boot up your computer then, after booting up, shutdown your computer then put back again the cmos battery, then boot up again your computer then you can go directly on your cmos, it will not prompt you for any password

regards

Dec 04, 2010 | Computers & Internet

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