It says ys this computer is protected by Password Authentication system. can't access the bios or every thing give me master bios password for INSPIRON 6400 dell laptop with service tag CV5RW2J-595B

You can remove it with windows 7 password tools. For removing Windows login Passwords safely, I strongly recommend Windows Password Reset 9.0. Few days ago, I downloaded it at http://www.reset-windows-password.com I burned it to a Usb memory card. Booting up and clearing my password within just 5 minutes.

Mine is as follows: #D7QT5G1-595B...I need the password authentification one for the hard drive or bios, I have a Dell Inspiron 1318..Thanks in advance..

As far as I know, there are a lot of tools and utilities that can be downloaded and used to recover, retrieve, reset windows password. However, I've tried a couple of these utilities through the years. The free software can help you, but you have to learn some computer skills and waste a lot time on learning. If you want to save more time, maybe Google third party password recovery tool or Google Window Password Seeker can help you. http://www.passwordseeker.com/howtouse.html

Forgot Windows 7 Password, you can remove or reset it. For removing Windows Passwords in safety, I highly recommend windows password reset tools. Last week, and then I downloaded one and used it to remove the lost password successfully.
http://www.reset-windows-password.com/reset-windows-7-password.html

Forgot windows os password is not a serious problem. I realize a fairly easy method to reset lost windows logon password, just need to create a bootable CD/DVD or USB flash drive to recover forgotten windows password, I have made a bootable Disc with the utility Windows Password Seeker and reset my administrator password successfully. You can Google windows password seeker or have a look at their official site: http://www.passwordseeker.com

If you forgot the Windows login password and want to recover or reset Windows password, there is two methods to help you reset the Windows login password:

Methods 1: Use the password reset disk to recover the Windows password, by this methods, you need create a Windows password reset disk before you have lost or forgotten your Windows password.

Method 2: Using Anmosoft Windows Password Reset to recover or reset Windows password, it support Windows all Windows versions like Windows 7, Vista, XP, 2000 and Windows Server 2008(R2), 2003(R2), 2000, etc

Anmosoft Windows Password Reset software recover or reset Windows password by four steps:
Step1: Download Anmosoft Windows Password Reset V8.0 and install it.(Download from here: http://www.resetwindowspassword.com).
Step2: Burn the ISO image file onto a blank CD/DVD or USB.
Step3: Boot up your Windows PC by the bootable burned CD/DVD or USB in minutes.
Step4: Remove the forgotten Windows password on the operation interface and logon PC without password.

Send me the service tag wich u can see on the bottom cover or trun on laptop u will see on screen hash code like this XXXXXXX-595B or D35b or 2A7B send me complete .ill send u password ..

Higigat try this password iyo3s9hj
hope it works