Just had another go at updating and there was no problem at all. Seems like it was Microsoft's problem all the time. Typical that the message...
Thanks for your suggestions SSK and Blue Drache, Thought I'd see if there was any mention in Microsoft's FAQ first but I cannot get on to any...
I have just installed the 3.4 Spywareblaster. Everything went well. But now the Microsoft AntiSpyware program which I also run on this machine...
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