You were all a great help to me here before and I am back hoping that you will answer these few questions for me, as we did discuss these particular issues (see above).
You may recall that I have a genuine ("sort of") copy of XP SP3 installed, but previously I didn't have an XP installation CD and I didn't know the Product Key.
mta - I managed to get the 25 digit Product Key - both Belarc and Magical Jelly Bean (!) Windows Key Finders gave me exactly the same code.
I have also managed to get a brand new genuine XP SP2 installation CD with COA + unused key - haven't seen any SP3 ones and Microsoft no longer distribute XP software. It says for distribution only with a new PC - is that ok?
Will a computer technician be able to reinstall XP SP3 using this and an update (although I'm not too bothered about the Service Pack, as it caused me problems before - I realise it's there for security reasons though). I'm wondering if the Service Pack is an optional choice when installing or if it's integrated and if it's integrated can it be updated to SP3?
Also, please confirm that this CD will enable me to carry out the sfc /scannow command (which was suggested here when I had the BSOD problem); when I previously tried to I was repeatedly asked for the XP installation CD.
This SP2 CD / SP3 computer difference is making me wonder.
A modern operating system would be better I know, but I am not able to get a new computer at present.