  Many thanks to rebel9 for this answer :  here it is exactly what I was after   Great Rebel9
I have a fan constantly blowing on my Inspiron 1525, so support advise me to run diagnostics from the Dell CD. As this was a gift, I didn't get the CD, so I was directed to the Dell Drivers update page. When I got there I found LOADS of updates, and out of 50 something possibles, I narrowed this down to 37, some of which are probably not needed but were recommended, even tho' I didn't have the relevant hardware installed. The drivers personal update list page DOESN'T included the Dell Importance rating - NB Dell, please include !!, so that makes it more difficult to decide, even so I have more than one 'Urgent' etc, some are BIOS, blah blah. So can someone advise how I can determine the Installation sequence please? I appreciate that in some caases it doesn't matter, but I'm sure that some system ones need to be in order. Thanks   PS - I am slightly surprised that Drivers are not a separate posting group, so I am including this post in other groups too. Also @ Driver updates - Installation sequence   SPEC Inspiron 1525 core 2 duo t5800   15.4" widescreen WXGA(1280x800) memory dual-channel 2048Mb (2x1024) 250Gb Serial ATA (5400rpm) Optical drive 8xdvd+/-RW drive Graphic Intel integrated GMA x3100 UK modem cable and adapter internal v.92 European - Dell Truemobile 355 internal Intel? pro wireless 3945 802.11A/B/G min XP Pro SP3  
Driver updates - Installation sequence