[CoPas] You cannot log on to Windows XP (auto log off)

Cause :

Wsaupdater.exe is spyware that changes Userinit.exe, to Wsaupdater.exe in the registry. Ad-Aware by Lavasoft removes the Wsaupdater.exe file from the computer, but it cannot change the registry subkey back to Userinit.exe,. The registry subkey that is changed is

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon

Value: Userinit
Data: %Windir%\System32\Wsaupdater.exe

Note : %windir% represents the location of the System32 folder. For example, if the location is C:\Windows\System32, the data would be C:\Windows\System32\Wsaupdater.exe.

The data should contain Userinit.exe, instead of Wsaupdater.exe. In the previous example, the data would be C:\Windows\System32\Userinit.exe,.

Note : The comma following the file path information is required.

Resolution

Use the Recovery Console to copy Userinit.exe to Wsaupdater.exe to allow logon capability to be restored and to let you manually correct the registry data. To do this, follow these steps:

Use Recovery Console to copy Userinit.exe to Wsaupdater.exe

//

  1. At the Recovery Console command prompt, type cd system32, and then press ENTER.
  2. Type copy userinit.exe wsaupdater.exe, and then press ENTER.
  3. Type exit, and then press ENTER.

Important : This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:

322756 (http://support.microsoft.com/kb/322756/ ) How to back up and restore the registry in Windows

Modify the registry

//

  1. Click Start, click Run, type regedit, and then click OK.
  2. In Registry Editor, expand
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon

    .

  3. In the right pane, right-click userinit, and then click Modify.
  4. Replace wsaupdater.exe with userinit.exe, (make sure to include the comma, as shown), and then click OK.
  5. Restart your computer.

Delete the wsupdater.exe

//

  1. Log on to the computer by using an account that has administrator-level permissions.
  2. Click Start, click Run, type%Windir%\system32, and then click OK.
  3. Right-click wsaupdater.exe, click Delete, and then click OK.

For additional information about the Windows Recovery Console, click the following article number to view the article in the Microsoft Knowledge Base: 314058 (http://support.microsoft.com/kb/314058/ ) Description of the Windows XP Recovery Console

Applies to :

  • Microsoft Windows XP Home Edition
  • Microsoft Windows XP Professional
  • Microsoft Windows XP Media Center Edition
  • Microsoft Windows XP Tablet PC Edition

Source : http://support.microsoft.com/default.aspx?scid=kb;en-us;892893

You cannot log on to Windows XP

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