Dell Latitude c640 wont boot in normal but will boot in safe mode. num lock and caps lock work but just has blank screen after xp splash screen

Start the computer in safe mode. See what happens.

Hello,
Please go to safe mode using administrator account and check whether it is entering or not? the 9 light shows the num lock is on and it could be turned off by pressing num lock or Fn num lock combo. This will also ensure (if num lock is working) that the issue is woth software.

Thanks

Step 1. Reboot the machine and during boot up continuously press F8 to enter Safe Mode

Step 2. When you computer boots into Windows, enable your VGA adapter if it is not already.

Try booting to the Safe Mode (F8 at boot) see if you get any further. Also, does the system complete boot (DO you hear windows sounds?) or is the system just hanging after the Splash screen (You can also try an external monitor and press Fn+F8 to enable the external display) If you can get video externally, then is it likely a LCD or video card failure. If you can't boot to the safe mode and you do not hear the Windows Welcome sound that normally plays at the desktop, then the system is not booting and you have either a hard drive failure and/or an operating system failure.
See if you can boot to the BIOS (F2 at boot), then reload the default settings and reboot.

If you suspect the OS is a problem, boot to the XP CD, then run CHKDSK /R and see if that helps
You can also run system Diagnostics by pressing Fn+the Power button

have you tried going to safe mode? or safe mode with networking? you can also try to run chkdsk /r on the recovery console,to do this,insert your xp cd,restart,press f12 to go to the boot menu,choose cd/dvd rom,press any key to boot to cd,after loading,press R for repair to go to recovery console,choose number 1 for the windows installation folder,leave password blank, type chkdsk /r press enter, this will take a while,after that type fixboot,press enter,continue, press Y,you might also try to run diagnostics first by pressing FN and Power button at the same time while its off,if it cant find the diagnostic partitition,you can boot to your resource cd or drivers and utilities cd

for no boot issues, you can try accessing windows advanced boot options by hitting F8 as soon as you see the dell splash screen. try to boot to safe mode or last known good configuration. if it doesn't work, last resort is to reformat the computer.

i hope this info helps.

Try putting the computer into safe mode by holding down on the F8 button and selecting safe mode during the boot process. Once you get to the safe mode screen and windows appears, restart the computer.

If that doesn't fix the problem you will have to restore Windows.

Using the Fn key combinations..

Fn> + <End>
Mutes the speaker
<Fn> + <Page Up>
Raises the sound volume
<Fn> + <Page Down>
Lowers the sound volume
<Fn> + <F10>
Ejects the drive bay
<Fn> + <Esc>
Places the computer in Suspend Mode
<Fn> + <F7>
Alters the font size at boot. If the Dell splash screen or Windows splash screen is very small, then this will enlarge it.
<Fn> + <Down Arrow>
Dims the backlight on the LCD
<Fn> + <Up Arrow>
Brightens the backlight on the LCD

Try removing battery for 10 min and then boot it up.

Just use recovery console of windows xp bootable media and use the following command.

chkdsk (to check the volume).
fixmbr
fixboot

It happens due to improper shutdown methods which has caused the system volume to corrupt the MBR.