Dell Windows 7 Upgrade Assistant Unhandled Exception error

I have recently installed a Dell branded Windows 7 upgrade to Vista using the Dell Upgrade Assistant disc supplied with it.

The Upgrade Assistant ran perfectly well prior to the main installtion - advising that it would remove FastAccess (facial recognition software) and then re-install it after the upgrade. The Windows 7upgrade then installed successfully with no notable hiccups. When the Windows Upgrade assistant reappeared to install temporarily removed software it returned an unhandled exception error before it is able to complete its tasks. FastAccesswhich was removed by the upgrade assistant prior to Windows 7 installation is not re-installed.

Like other posts - the Upgrade Assistant returns every time I boot up. It offers to install updated versions of software that were removed (presumably including FastAccess). If I press continue I get the following error message.

"Microsoft.NET Framework

Unhandled exception has occured in your application. If you click Continue the application will ignore this error and attempt to continue. If you click Quit, the application will close immediately.

Object reference not set to an instance of an object." [I have included the detailed error log at the end of this question]

If I press "Quit" it exits and does not complete the process. If I press "Continue" the program hangs and has to be closed with Task Manager.

There appear to be quite a few suggestions on how to make the Assistant disappear but I would like to get it to finish re-installing the removed files including FastAccess.

 

Can anyone help?

 

Error Log

See the end of this message for details on invoking 

just-in-time (JIT) debugging instead of this dialog box.

 

************** Exception Text **************

System.NullReferenceException: Object reference not set to an instance of an object.

   at Win7_Upgrade.PreInstall_Update.checkModel(System_info sysInfo, Upgrade_info upgradeInfo)

   at Win7_Upgrade.PreInstall_Update.checkBIOS(System_info sysInfo, Upgrade_info upgradeInfo)

   at Win7_Upgrade.PreInstall_Update.UpdatesComplete()

   at Win7_Upgrade.Wizard.runForwardStep()

   at Win7_Upgrade.Wizard.Wizard_Activated(Object sender, EventArgs e)

   at System.Windows.Forms.Form.OnActivated(EventArgs e)

   at System.Windows.Forms.Form.set_Active(Boolean value)

   at System.Windows.Forms.Form.WmActivate(Message& m)

   at System.Windows.Forms.Form.WndProc(Message& m)

   at Win7_Upgrade.Wizard.WndProc(Message& m)

   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)

   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)

   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

 

 

************** Loaded Assemblies **************

mscorlib

    Assembly Version: 2.0.0.0

    Win32 Version: 2.0.50727.4927 (NetFXspW7.050727-4900)

    CodeBase: file:///C:/Windows/Microsoft.NET/Framework/v2.0.50727/mscorlib.dll

----------------------------------------

Win7_Upgrade

    Assembly Version: 1.0.0.0

    Win32 Version: 1.0

    CodeBase: file:///C:/Users/Jon/AppData/Local/DellWin7Upgrade/Win7_Upgrade.exe

----------------------------------------

System.Windows.Forms

    Assembly Version: 2.0.0.0

    Win32 Version: 2.0.50727.4927 (NetFXspW7.050727-4900)

    CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Windows.Forms/2.0.0.0__b77a5c561934e089/System.Windows.Forms.dll

----------------------------------------

System

    Assembly Version: 2.0.0.0

    Win32 Version: 2.0.50727.4927 (NetFXspW7.050727-4900)

    CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System/2.0.0.0__b77a5c561934e089/System.dll

----------------------------------------

System.Drawing

    Assembly Version: 2.0.0.0

    Win32 Version: 2.0.50727.4927 (NetFXspW7.050727-4900)

    CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Drawing/2.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll

----------------------------------------

AxInterop.SHDocVw

    Assembly Version: 1.1.0.0

    Win32 Version: 1.1.0.0

    CodeBase: file:///C:/Users/Jon/AppData/Local/DellWin7Upgrade/AxInterop.SHDocVw.DLL

----------------------------------------

Interop.SHDocVw

    Assembly Version: 1.1.0.0

    Win32 Version: 1.1.0.0

    CodeBase: file:///C:/Users/Jon/AppData/Local/DellWin7Upgrade/Interop.SHDocVw.DLL

----------------------------------------

Accessibility

    Assembly Version: 2.0.0.0

    Win32 Version: 2.0.50727.4927 (NetFXspW7.050727-4900)

    CodeBase: file:///C:/Windows/assembly/GAC_MSIL/Accessibility/2.0.0.0__b03f5f7f11d50a3a/Accessibility.dll

----------------------------------------

 

************** JIT Debugging **************

To enable just-in-time (JIT) debugging, the .config file for this

application or computer (machine.config) must have the

jitDebugging value set in the system.windows.forms section.

The application must also be compiled with debugging

enabled.

 

For example:

 

    

 

When JIT debugging is enabled, any unhandled exception

will be sent to the JIT debugger registered on the computer

rather than be handled by this dialog box.