HP Notebook PCs - Error Message Appears on a Blue Screen During Startup or Boot in Windows XP
HP recommends the following resolutions for "blue screen" error messages that may occur before Windows XP or Windows 2000 is started.Please select the error message below that most closely resembles what appears on your display and click the corresponding link for steps to resolve the problem.UNMOUNTABLE_BOOT_VOLUME
HP notebooks that use Microsoft Windows XP without XP Service Pack 2 installed may start with the following error:
STOP 0x000000ED (0xaaaaaaaa,0xbbbbbbbb,0xcccccccc,0xdddddddd) UNMOUNTABLE_BOOT_VOLUME
For more information about this error message and for steps to resolve the problem click on the link below.
PAGE_FAULT_IN_NONPAGED_AREA
When booting or restarting the notebook, the following error message may appear on a blue screen:
PAGE_FAULT_IN_NONPAGED_AREA *** STOP: 0X00000050
For more information about this error message and for steps to resolve the problem click on the link below.
MULTIPL_IRP_COMPLETE_REQUEST
During a restart the notebook may stop responding or freeze. A blue screen may appear and the following error is displayed:
Multipl_IRP_Complete_Request
For more information about this error message and for steps to resolve the problem click on the link below.
IRQL_NOT_LESS_OR_EQUAL STOP
Norton Anti-Virus version 11.2.1.2 may cause Microsoft Windows XP to stop responding and the following error message may appear on a blue screen:
Error Message: IRQL_NOT_LESS_OR_EQUAL STOP: 0X0000000A (0X0000000B,0X00000002,0X00000000,0X804EA7AB)
For more information about this error message and for steps to resolve the problem click on the link below.
Windows Unsafe or Sudden Shutdown
Windows XP may not start and the following error message may appear on a blue screen: Windows Unsafe or Sudden Shutdown .
For more information about this error message and for steps to resolve the problem click on the link below.
Missing or corrupt LSASS.sys
The Sasser worm exploits the Local Security Authority Subsystem Service (LSASS) vulnerability fixed in Microsoft Security Update MS04-011 on 13 April 2004. An error message from NT/Authority referencing LSASS will appear and the notebook will shut down.
For more information about this error message and for steps to resolve the problem click on the link below.
Missing NTLDR.dll
An error message referring to "NTLDR" may appear when Windows is starting. This may occur after installing a program or application.
For more information about this error message and for steps to resolve the problem click on the link below.
Hope this post might have solved your problem...
the content was taken from http://h10025.www1.hp.com/ewfrf/wc/fastFaqLiteDocument?lc=en&cc=us&product=18703&dlc=en&docname=c00372711
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