Uninstall Sophos Anti-Virus get Internal Error 2738

Recently I was attempting to uninstall Sophos Anti-Virus from my computer to change which server I get the anti-virus updates from as we are switching which server anti-virus server is run on. I decided that I would uninstall the old version and re-install as this would be the easiest way for me to change settings that were all grayed out not allowing me to change. I was able to un-install everything except for the Sophos AutoUpdate service as it would error out with an Internal Error 2738. Doing a quick 10 minute Google search found that I should attempt to register the vbscript.dll file. To do this follow the instructions below. Please note I am running Windows 7 32 bit.

  • Click the Start button/pearl
  • In the Search programs and files box just above Start button do a search for Command. This will bring up the Command Prompt in the search. Right click this and Run as Administrator.
  • This should open a command prompt window with the default file path of c:\Windows\system32. Type the following in the command prompt then hit enter:

    regsvr32 vbscript.dll

  • If success you will see a message that says: “DllRegisterServer in vbscript.dll succeeded.”

Now that we have done that you can minimize the command prompt and attempt to uninstall the Sophos AutoUpdate client that we could not previously. If you are still getting the error above you will need to continue process below to delete a registry key. I would highly suggest backing up the registry before doing any changes to the registry in case something goes wrong which it shouldn’t.

  • Bring back up your Administrator Command Prompt
  • Paste the following into the command prompt and then press enter:

    reg delete “HKCU\SOFTWARE\Classes\CLSID\{B54F3741-5B07-11CF-A4B0-00AA004A55E8}” /f

  • Once you have deleted the registry key run the regsvr32 vbscript.dll command that we did above

Now that we have deleted the registry key and re-registered the vbscript.dll file we should now have success in un-installing Sophos. If you are still having problems with this I highly recommend contacting Sophos support.

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