Fix Windows XP Error Code 0x800705aa

You may receive an error message similar to the one given below when you start your Windows XP computer:

A problem is preventing Windows from accurately checking the license for this computer. Error code: 0xnnnnnnnn

Depending on the cause of the error, the nnnnnnnn represents a specific error code. In this article, we are going to cover the causes and resolution methods that you can use when you receive the error code 0x800705aa, error code 0x80070002, error code 0x80004005, error code 0x800405aa, and error code 0x80090019.

Cause of the Error

You encounter this error message if there are error codes within the third-party program you are trying to use.

Resolution Method

WinTools is the third-party software that is most commonly known to generate these error codes. Here, we are going to discuss the workaround method to resolve this issue when you have the WinTools software installed on your system.

To resolve the error code, perform the following steps:

  1. Disconnect your system from the network by removing its network cable.
  2. Use the Add or Remove Programs (appwiz.cpl) to uninstall the WinTools software.
  3. Note: To ensure complete removal, you may use a third-party uninstaller, such as Perfect Uninstaller to perform the uninstallation. You may also choose to follow up the removal process with a registry scan and cleanup with help of a reliable registry tool such as RegServe, to ensure that no unwanted information is left behind in the registry.

  4. Restart your PC in Safe mode-press F8 when your PC is just starting up and then scroll down the Windows Advanced Options Menu with the Down Arrow key, highlight Safe Mode and then press Enter.
  5. When the PC starts in Safe Mode, open Start menu, select Run, type regedit and then press Enter to open the Registry Editor window.
  6. Warning: The registry is an essential component of your Windows operating system and any incorrect edits to it can cause serious damage to the system. To prevent this, it is recommended that you backup the registry before making any direct edits to it. You can backup the registry both by using the File> Export option in Registry Editor or by using a reliable third-party registry tool.

  7. In Registry Editor, navigate to the following registry key:
  8. HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run

  9. If you find the following subkeys, delete them:
  10. HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{87766247-311C-43B4-8499-3D5FEC94A183}

    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\ Windows\CurrentVersion\Explorer\BrowserHelperObjects\ {87766247-311C-43B4-8499-3D5FEC94A183}

  11. Exit the Registry Editor window and restart your system in Safe Mode again.
  12. After the system restarts, open Windows Explorer, navigate to the WinToolsProgramFolder\Common files\WinTools folder and then delete the following files:
    • WToolsA.exe
    • WSup.exe
    • WToolsS.exe
    • WToolsB.dll
  13. Note: By default, WinToolsProgramFolder is C:\Program Files.

  14. Open Start menu, select Run, type %Windir%\System32\Drivers\Etc\ and then press Enter.
  15. Clean up the host files located here.
  16. Open Windows Explorer, search for files with Wtools or Wsup in their name, and delete them-you may find a few files in the %Windir%\prefetch folder.
  17. Restart your system normally.

You should now be able to start your Windows XP computer without any errors.