Thanks, I finally have access to my Win 7 home premium system on my Dell Studio 1555 in "regular" mode rather than only safe mode.
My problem is, if I reboot again Win tries to reapply SP1 and I end up going through the SP1 Fix process again.
I tried running the standalone installer under safe mode - also failed - also fails to revert.
I tried to get to the Windows SP Upgrade Readiness download via MS, but both attempts ended up with a zip file for which the password given to me, by MS, will not unlock.
I'm stuck in a loop.