If you are talking about the windows automatic updates.....and the operating system is the original stuff (genuine ) all you have to do is to get into the control panel and under the automatic updates...select to download and install auto ..and you will not have to worry about ..
The only thing is that for some of the programs or for example to get top sp3...it will run a software called wga (windows genuine advantage ) ..and if it is pirated it will not proceed with the updates ..and probably block some of the features..and place a banner on the right side...
This can be removed by searching for a file named WgaLogon.dll (just make a search from start ) ..and rename it by changing a letter ..
The banner will go off on reboot...and the wallpaper need to be set again ..
If you are talking about upgrading ...from XP to Vista or higher...this can be made by downloading a Iso ..image file of the operating system ..and run it with a virtual disk drive ..directly from your computer ...(for example Daemon tools
)..and this will install the operation system ..and keep the old files from the other OS ..(they can be deleted after install ) ..
Or ..after downloading the image file ...use a ISO burner..to make a boot-able disk with the OS you want ..and boot from the disk using F8 to select the order..and install a clean upgrade..
If you were talking about the microsoft office ...this you have to buy a license ..and to make update ..you already have to have it licensed in the computer ..
or ...if you just want a complete Office ..2007 ..I can link you to an image file ...that can be burned and installed..or ..same opened with daemon tools and installed..
Here is the link for the torrent download..of Office 2007 ..with cd keys ..already on it ..
(they auto-complete if run with virtual disk ) http://thepiratebay.org/torrent/4560952/Microsoft_Office_2007
if yo want ..you can keep the old 2003 for files made on it ..cause here are issues with reading files from one edition to the other ..
You need this software installed in computer ..to use for downloading torrent files..after installing this program ...all you need to make for to download the file ..is to click on the green arrow on the download this torrent line
..and confirm opening with utorrent ..
here is the program ...http://www.utorrent.com/downloads
OR !!!!! use any torrent client you might already have in computer ...like LIME or Bitorrent