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HP and Compaq PCs - PC Starts to Black Screen With Only a White Arrow (Windows XP)

This document pertains to HP and Compaq PCs with Microsoft Windows XP.
It is possible that the file Lsass.exe has become damaged or is not properly linked to the other files in the security system. Reset this file by using the following steps:
Step 1: Opening a command prompt
This error prevents Windows XP from opening. This problem has to be addressed from a command prompt environment.
Use the following steps to open a command prompt environment:
  1. Turn on the PC and press the F8 key repeatedly when the first screen appears.
    The Windows advanced options menu appears.
  2. Use the Up and Down Arrow and Enter keys to select Return to OS choices.
  3. Select Microsoft Windows Recovery Console.
      note:
    If "Microsoft Windows XP Recovery Console" is not listed, restart the PC with a Windows XP CD, Recovery Console CD, or Recovery Tools CD in the top CD or DVD drive and open Microsoft Windows Recovery Console. If a Windows XP Setup screen appears when using Recovery Console CDs, press the R key to open the Recovery Console.
      note:
    If "Microsoft Windows XP Recovery Console" does not list and you do not have a CD with recovery console, try the following:
    1. Turn on the PC, and press the F10 key repeatedly at the first screen.
    2. At the Recovery screen, click Advanced Options.
    3. Press the Alt + D keys at the same time to open a command prompt window and skip to step 5.
  4. When the login prompt appears, press the number next to the windows version (minint or Windows) and type the logon password. Try pressing Enter if you do not know the password.
  5. At the command prompt, type the following: diskpart
  6. Press Enter, do one the following:
    • If a table of volume names appears, remember the drive letter next to the main drive volume name (usually D or H next to HP_PAVILION or PRESARIO) and press the Esc key.
    • If a diskpart prompt appears, type list volume, press Enter, remember the drive letter next to the main drive volume name (usually D or H next to HP_PAVILION or PRESARIO), type exit when done, and then press Enter.
      note:
    If the main drive volume name does not appear in the list, the PC needs to be recovered. For more information, refer to Performing a Full System Recovery in XP.
Step 2: Replacing the file from a backup folder
Use the following steps to find and replace the Lsass file from the command prompt environment:
  1. Type the following at the command prompt: cd X:\i386 (where X is the main drive letter)
  2. Press the Enter key. If the error The system cannot find the path specified appears, enter the following paths, in order, until the error does not occur:
    • cd X:\Windows\i386 (where X is the main drive letter)
    • cd c:\i386
    • cd c:\Windows\i386
  3. Press the Enter key, and type the following at the command prompt:
    expand lsass.ex_ X:\windows\system32 (where X is the drive letter)
  4. Press the Enter key, and type the following at the command prompt:
    cd X:\windows\system32 (where X is the drive letter)
  5. Press the Enter key, and type the following at the command prompt:
    attrib lsass.exe -r
  6. Press the Enter key, and type the following at the command prompt:
    rename lsass.exe lsass.bak
  7. Press the Enter key, and type the following at the command prompt:
    rename lsass.ex_ lsass.exe
  8. Press the Enter key, and type the following at the command prompt:
    exit
  9. Press Enter and the PC restarts without the error. If the error persists, go to the next step.
Step 3: Recovering the PC
If the error still continues, recover the PC.

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