It's very easy...Start/All Programs/Windows Update
Now see how much easier when we all use complete sentences: Click on the Start icon at the bottom left corner of your screen. Click on All Programs and then Windows Update. There....you'll find all the stuff that you're missing, including your toshiba drivers. If you're having troubles running certain programs, try running it using windows compatibility mode. If that fails, then use windows xp mode....this will absolutely work if you're just trying to run a program.