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Cannot Boot to Windows

Discussion in 'Virus & Other Malware Removal' started by jeffshort, Feb 8, 2007.

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  1. jeffshort

    jeffshort Thread Starter

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    When I try to boot my computer up, I get a missing component warning 'lsass.exe' and cannot find 'lsasrv.dll'. I am running XP Pro.
     
  2. JSntgRvr

    JSntgRvr Moderator Malware Specialist

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    Hi, jeffshort :)

    Boot the computer with the Windows XP Professional XP and bring the computer to the Recovery Console. If you downloaded update KB924270 you may be able to recover by typing the following at the prompt: (Assuming Windows is installd in Drive C:)
    Code:
    Attrib -r -h C:\WINDOWS\$hf_mig$
    Attrib -r -h C:\WINDOWS\$hf_mig$\KB924270
    Attrib -r -h -s C:\Windows\System32\lsasrv.dll
    Ren C:\Windows\System32\lsasrv.dll C:\Windows\System32\lsasrv.old (If missing you will receive an error. Disregard that error and continue.)
    Copy /Q C:\WINDOWS\$hf_mig$\KB924270\SP2QFE\lsasrv.dll C:\Windows\System32\lsasrv.dll
    Attrib +r +h C:\WINDOWS\$hf_mig$\KB924270
    Attrib +r +h C:\WINDOWS\$hf_mig$
    Exit
    
    Keep us posted.
     
  3. jeffshort

    jeffshort Thread Starter

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    When I try to enter this, I get "The parameter is not valid. Try /? for help."
     
  4. JSntgRvr

    JSntgRvr Moderator Malware Specialist

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    Hi, jeffshort :)

    Chances are that you did not leave the correspoding spaces. Try again using the code below:(The spaces are indicated as [Space] . Do not include [Space] in your coding.)

    Code:
    Attrib[Space]-r[Space]-h[Space]C:\WINDOWS\$hf_mig$
    Attrib[Space]-r[Space]-h[Space]C:\WINDOWS\$hf_mig$\KB924270
    Attrib[Space]-r[Space]-h[Space]-s[Space]C:\Windows\System32\lsasrv.dll
    Ren[Space]C:\Windows\System32\lsasrv.dll[Space]C:\Windows\System32\lsasrv.old
    Copy[Space]/Q[Space]C:\WINDOWS\$hf_mig$\KB924270\SP2QFE\lsasrv.dll[Space]C:\Windows\System32\lsasrv.dll
    Attrib[Space]+r[Space]+h[Space]C:\WINDOWS\$hf_mig$\KB924270
    Attrib[Space]+r[Space]+h[Space]C:\WINDOWS\$hf_mig$
    Also you must include the underscore in $hf_mig$ I have tested the code. You shouldn't have a problem. Is there a floppy disk drive in your computer?

    Keep me posted.
     
  5. JSntgRvr

    JSntgRvr Moderator Malware Specialist

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    Hi, jeffshort :)

    Here is a longshot:

    Type this at the prompt:

    Expand X:\i386\lsasrv.dl_ C:\Windows\System32\lsasrv.dll

    Where X is the assigned letter to your CD_ROM. To find out wich letter is your CD_ROM, type MAP and press Enter. The command above with the spaces is as follows:

    Expand[Space]X:\i386\lsasrv.dl_[Space]C:\Windows\System32\lsasrv.dll

    That one will extract a copy of your Installation CD into the System32 folder, although it will be an older version.

    Type Exit to restart the computer.
     
  6. jeffshort

    jeffshort Thread Starter

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    I tried the Expand and it said 'Unable to create file lsasrv.dll'. I tried the other code again and got 'The parameter is not valid' again.
     
  7. JSntgRvr

    JSntgRvr Moderator Malware Specialist

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    Try the following variations:

    CD System32
    Rename lsasrv.dll lsasrv.old
    Copy /Y C:\WINDOWS\$hf_mig$\KB924270\SP2QFE\lsasrv.dll
    Exit


    CD System32
    Rename lsasrv.dll lsasrv.old
    Expand -r X:\i386\lsasrv.dl_ C:\Windows\System32\lsasrv.dll
    Exit


    Where X is the drive letter of the CD_ROM

    The name of the file is LSASRV.DLL. The first letter is L.
     
  8. jeffshort

    jeffshort Thread Starter

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    The first option gave the message, 'The system cannot find the file or directory specified.'

    The second gave, 'The parameter is not valid.'

    Am I going to have to do a format and reinstall of Windows?
     
  9. JSntgRvr

    JSntgRvr Moderator Malware Specialist

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    Hi, jeffshort :)

    There is no need if we are able to copy this file to the right directory.

    I don't know if you have a floppy disk drive. I am enclosing a copy of the file in a compressed form. You can save and extract this file on the desktop of the computer you are communicating with us, then tranfer the .dll file to a floppy disk and from there to the troubled computer by typing the following command at the Recovery Console command prompt:

    CD SYSTEM32
    COPY /Y A:\LSASRV.DLL
    EXIT

    Or try the following command again:

    CD SYSTEM32
    RENAME LSASRV.DLL LSASRV.OLD
    EXPAND X:\i386\LSASRV.DL_ C:\Windows\System32\LSASRV.DLL
    Exit

    You have to make sure you are using the right syntax. Forward slash "/" or Back slash "\", and observe the spaces left in the command. The file is compressed in the Installation CD as LSASRV.DL_. It ends with an underscore.

    Keep me posted.
     

    Attached Files:

  10. jeffshort

    jeffshort Thread Starter

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    OK, that copy worked. The computer restarted and gave me 2 errors--logonui.exe and winlogon.exe. The computer restarted and ran CHKDSK. It reported and error with index $I30. During the CHKDSK it reports an unexpected error and reboots. Then the whole process repeats . . .
     
  11. JSntgRvr

    JSntgRvr Moderator Malware Specialist

    Joined:
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    First Name:
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    Hi, jeffshort :)

    Chances are that the Hard Drive is having problems. Can you boot in Safe Mode without the CHKDSK loop?
     
  12. jeffshort

    jeffshort Thread Starter

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    No, when I try to boot to safemode it just stalls out before loading and quits responding.
     
  13. JSntgRvr

    JSntgRvr Moderator Malware Specialist

    Joined:
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    First Name:
    José
    Hello, jeffshort :)

    The only way we can stop CHKDSK is throughout a registry modificaton. Lets disable the file, and see if you can abort the process.

    Bring the Recovery Console and at the prompt type the following:

    CD SYSTEM32
    REN CHKDSK.EXE CHKDSK.OLD
    EXIT

    Keep me posted.
     
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