Jon said:
It doesn't sound healthy, but as a longshot you could try unplugging
some peripherals eg modem, printer, scanner, any usb devices. Might be
stuck on some particular device.
Thanks Jon - but did not help (I unplugged a USB mouse device, and
internet cable)
I turned off the computer - luckily it came back ('safe mode') and
continued its update to 100%. Alas, at the ned of this 'successful'
installation, it decided to revert all changes.
Now I have the 'Mother of all Nags' on my hand - 'SP1 update waiting to
be installed' every time I boot up.
NOT unless I know what to do differently next time. I followed the
classic line - I updated the tcusb.sys driver, got the WU offer online,
and 65 MB download and 4 hous later ... I'm back at square one.