Vista - Kb955430

Hi, I've had exactly the same problem, as have many, apparently.

1 CPU runs at about 100%, Trustedinstaller.exe.

Now, my PC came preinstalled, including SP1, so it seems I have no option to uninstall SP1.

What I can add is this:

Hi, I'm having exactly the same problem.

1 CPU at 100%, Trustedinstaller.exe when the install progress abr reaches about 90%.

I've tried the ideas above, no joy: as my PC came preinstalled with SP1 I seem to have no way to uninstall it.

What I can add is this:

Process Monitor shows is the update continually accesses:
C:\Windows\servicing\Version\6.0.6001.18000
- no more files

This suggests an infinite loop in the code, and something missing from that folder.
Could someone who has successfully applied this please post the contents of that folder?

Attempts to report this to MS have been rather fobbed off to date.

Thanks!