Latest Windows 7 64 bit Update fails after reboot with message "Preparing to Configure Windows. Do

The following problem occurs on two new laptops, both running Windows 7 64 bit Home Premium. Both of these laptops have been kept current on Windows Updates with no problems, other than the occasional update failure, which had no adverse impact on reboot.

However, the latest group of Windows Updates stalls after reboot with the message box: "Preparing to Configure Windows. Do not turn off your computer" Hours later, it is still stalled. I cannot see the desktop. If I shut down and reboot into Safe Mode,

then I can get to the desktop, but rebooting into normal Windows results in this error message again.

Here are the updates in this latest group:

Security Update for Microsoft .NET Framework 3.5.1 on Windows 7 and Windows Server 2008 R2 SP1 for x64-based Systems (KB2736422)

Security Update for Microsoft .NET Framework 3.5.1 on Windows 7 and Windows Server 2008 R2 SP1 for x64-based Systems (KB2742599)

Security Update for Microsoft .NET Framework 3.5.1 on Windows 7 and Windows Server 2008 R2 SP1 for x64-based Systems (KB2756921)

Security Update for Microsoft .NET Framework 4 on XP, Server 2003, Vista, Windows 7, Server 2008, Server 2008 R2 for x64 (KB2736428)

Security Update for Microsoft .NET Framework 4 on XP, Server 2003, Vista, Windows 7, Server 2008, Server 2008 R2 for x64 (KB2742595)

Security Update for Windows 7 for x64-based Systems (KB2757638)

Security Update for Windows 7 for x64-based Systems (KB2769369)

Security Update for Windows 7 for x64-based Systems (KB2778930)

Security Update for Windows 7 for x64-based Systems (KB2785220)

Update for Windows 7 for x64-based Systems (KB2726535)

Update for Windows 7 for x64-based Systems (KB2773072)

Update for Windows 7 for x64-based Systems (KB2786081)

Update for Windows 7 for x64-based Systems (KB2786400)

Windows Malicious Software Removal Tool x64 - January 2013 (KB890830)

I followed the standard procedure for uploading and installing, a procedure which has worked many times before. This time, the update fails after reboot identically for both laptops. I have two other PC's, which I am reluctant to update until this problem

is solved, for obvious reasons.

How can I fix this, problem and/or which update is causing this?

Thanks for your help!

Airpilot

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