Unable to download Windows Updates

Question：I purchased a Dell XPS M1530 less than 2 months ago and including the initial bootup, have been unable to download any Windows Updates.  Several emails to Microsoft and keep getting the same suggestion over and over.  Four hours on the phone/remote sessions with Dell today with no luck.  Here is what I get when I try to update:  Code 80040154 Windows Update encountered an unknown error.  I have tried both the default and agressive fix-its with no change.  At one point over the past couple of weeks I did see this pop up and captured the info:

Problem Event Name: APPCRASH Application Name: TrustedInstaller.exe Application Version: 6.0.6001.18000 Application Timestamp: 4791935a Fault Module Name:"
Fault Module Version: 6.0.6002.18005 Fault Module Timestamp: 49e0420f Exception Code: c0000005 Exception Offset: 00000000001498cf
Locale ID: 1033 Additional Information 1: 42a4 Additional Information 2: d7826e17fbb0a85d5d82f71751715338 A
Additional Information 4: 20d52fbc9f98ca02084cc687265857ce Files that help describe the problem Version.txt AppCompat.txt memory.hdmp minidump.mdmp

Any suggestions?  I really am ready to take this laptop outside and run it over a few times.

Answer 1：I have also done the Clean Boot.  Ran the malware scan - nothing. 

Answer 2：

CheckSur.persist

=================================
Checking System Update Readiness.
Binary Version 6.0.6001.22375
Package Version 5.0
2009-06-19 20:48

Checking Deployment Packages

Checking Package Manifests and catalogs.

Checking package watchlist.

Checking component watchlist.

Checking packages.

Checking component store
Summary:
Seconds executed: 1579
 No errors detected

CheckSur.log same thing - no errors detected

Answer 3：

Hello,

Thank you for using the Answers Forum!

Have you ever been able to run Windows Updates successfully?

If so, you can try doing a System Restore before this started happening. You can do this by going to Start, All Programs, Accessories, System Tools, open System Restore and choose a date and time before the problem started.

We look forward to hearing back from you.

---

David