Will not boot up i tried to repair with bios but still will not boot

If the power went off during the process of updating the BIOS on your Dell Latitude E6400, it can cause the system to become unstable and display an "invalid configuration" error. Here are a few steps you can try to resolve the issue:

1. Try to boot the computer: Turn on the computer and try to boot into the operating system. If it doesn't boot, try to boot into the BIOS by pressing the F2 key repeatedly when the Dell logo appears on the screen.
2. Check the battery: Make sure that the battery is properly connected and has a charge. If the battery is low, it may cause the system to shut off during the BIOS update.
3. Run BIOS recovery: Dell has a BIOS recovery feature that can be used to recover the BIOS in case of corruption. To run the recovery, you will need to create a BIOS recovery USB drive and boot the computer from it. Follow the instructions on the Dell website to create the recovery drive and run the recovery process.
4. Try a different power source: If you were using a battery during the update, try using the AC adapter instead. If you were using the AC adapter, try using a different one, or a different outlet to make sure that the power supply is stable.
5. Take to a repair shop: If the above steps do not work, it may be best to take the computer to a repair shop for further diagnosis.

It's important to note that running a BIOS recovery may cause you to lose all data on your computer, please make sure to backup your data before proceeding.

Check if hard drive is shown in bios.

try to tap F8 a couple of times AFTER bios post message, it should bring up windows boot menu. Try safe mode or, if possible, repair your windows. If this doesn't work, try to get a cd/dvd of your particular windows and try to repair it.

After "Fast Boot" has been enabled, you cannot access the BIOS setup during power on . The machine will bypass "Press F2 to access Setup Utiltiy and F12 for Boot Menu" prompt.
This is a bigger issue if the hard drive crashes and access to Windows is not possible OR

Fast Boot can be enabled or disabled in the BIOS setup, or in HW Setup under Windows.
If you have Fast Boot enabled and you want to get into the BIOS setup. Hold down the F2 key, then power on. That will get you into the BIOS setup Utility.
You can disable the Fast Boot Option here. You will need to disable Fast Boot if you want to use the F12 / Boot menu.

This is in case you cannot boot into windows but you can get into bios:
Open your disk drive. Insert windows operating system disk into your disk drive. Restart your computer.
If you can get to the stage where you can see see bios entry key then keep pressing whatever key it is that you press to get into bios at start up.
Select the option that let's you choose the drive to boot from, mine is in advanced bios options. then go to either something like bios features or change boot drive.select whatever drive represents your CD-ROM drive and select it to be the first boot drive.
then save exit bios, I do this by pressing escape then Y to save and boot from the rom drive.
This will let you restart your installation of windows and
re-format the drive...
If you can boot into windows:
Then either re-format the drive and delete the partition when you do or...
Run a recovery of the system by installing your disk and letting it get to the stage wher it asks what action/task you want to perform and press r when prompted then follow the prompts to repair the files. This might not work though,
you could even try running a disk check as maybe a lucky chance of repair if you can get into windows.
If your PC keeps trying to boot from the CD drive after repair then re-enter bios at start up and change your hard drive back to first boot device to boot into windows.

It's better if you re-format though as repairing windows can be a little tricky.

NTLDR missing is typical of Windows not findind some system files during the boot, I believe nothing wrong with the hardware.

First enter in the BIOS and be sure that in the boot device list you have the CD or DVD before the HDD.
Second Boot the PC from CD with the Windows CD and try to repair the Windows installation.

http://download.lenovo.com/pccbbs/mobiles_pdf/45n3684_01.pdf

To enter the BIOS Setup Utility, do as follows: 1. Turn on the computer. 2. When the Lenovo logo comes up, immediately press F2 to enter the BIOS Setup Utility.Note: If the customer has set a supervisor password, the BIOS Setup Utility menu appears after the password is entered. If the customer has set a user password, you can start the utility by entering that password; however, you cannot change all of the parameters.

Please let me know if you need more support.

Best regards

Hi, welcome to FixYa.

Apparently, the error of your system is missing operating system, this could caused by many things, from broken hard disk to missing boot record such as MBR.

First, try to fix your BIOS start up setting. Depend on your BIOS setting, go to your BIOS by pressing F1 or F2 (apparently this is your key) or END during boot time. Then go to Boot Setting (this name is vary in any BIOS manufacture, so try to locate the similar name). Change the boot priority with first priority is your hard drive,

If you still don't able to boot, this can be caused by missing boot record such as MBR. This is little bit trickier. The fastest way (I assume you use Windows), is to insert your Windows installation CD/DVD then boot from there (by changing boot priority again from BIOS, or some new BIOS support pressing F12 to choose boot device). After you boot from there, repair your Windows.

I hope this information will be helpful. Thank you for using FixYa!

This issue is often caused by either an incorrect setting in BIOS or a bad boot device, such as a bad hard disk drive.

Try this:

Verify that your hard disk drive is setup and detected properly in BIOS. You're computer should list a hard disk drive installed either under the main page or the drives page in BIOS. If BIOS indicates the drive is not installed or not detected skip to Hard Disk drive is bad or not connected properly.
Verify the boot options are properly set in BIOS, almost all BIOS setups should contain options specifying how your computer boots. For example, most computers should have their boot options setup similar to the below example.

- Floppy drive
- CD drive
- Hard drive

Rest your BIOS to default values. Many BIOS will enable users to reset the values to the default settings. If you've tried the above options without success try resetting the BIOS.

Boot from either your emergency repair disk, your bootable Windows CD, or your bootable restore CD.
Once boot attempt to repair Windows. If you're able to repair Windows remove the disks and reboot the computer.

If the above fails:

Verify the connections are properly connected to the computer if the hard drive was recently installed or the computer was moved.

If all connections are setup properly and all the above recommendations have been attempted, it is likely that the hard disk drive is bad and it will need to be replaced.

Let us know how it works out.

iF you cannot resume with the Operating system..try to go to Bios and set up the boot priority 1 = hard disc,

If this wont still work, your Operatiting system might be corrupted.. go to bios again and set up the boot priority 1 = cdrom.. next, try to insert the installation disc of your OS but do not install it, select option: REPAIR only.

If the cdrom would not boot, unplug the battery of the bios, then put it back again correctly. After this, boot again your cd.. Thanks..! dont forget to comment if you like my post.

Try running diags Fn + Power button see if anything fails

Since you can boot to the BIOS, then the system is posting, so I suspect you have either a Windows issue or a hard drive issue.

If the HDD passes diagnostics, I'd try booting to the XP CD and see if you can press R for recovery console and run the command CHKDSK /R and see if that resolves

Post back with the results

Hey karl12,  i think some more info would be helpful.  Any big event that made this start.  Have you tried running memtest 86?  If you have multiple sticks of RAM try each one.  Is there any beeping during boot up?  Have you tried using a windows disc to boot to a repair console?  Also what are your bios settings?  Have you tried changing to load safe defaults in your bios?  Is your bios recognizing your boot hard drive?  These should help limit the possibilities.