Find the web site of the maker of the periferal for whitch you want new drivers.
In the support or download section, look for your model and Winsows XP.
If you don't find newer, or anything, you have the most up to date drivers for that device.
If you are lucky and do find some, proceed to download the patest version somewhere on your computer.
Run the downloaded file, usualy an .EXE file but may be a .MSI of a .ZIP file. If it's a .ZIP, extract it and run the .EXE file it contains.
If your computer is somewhat old, over 5 years, and the same appli to the periferals, you may well be past the end of support period. This mean that you already have the latest drivers available, even if they are several years old.
If you have any AGP video card, those ARE obsolete! They have no drivers less than 5 to 10 years old.
Electro, September 2014