Loss of my Computer: Vista Microsoft's failed Operating System

Years ago, I was able to get a laptop as a consultation prize after being let go from AT&T.  I went to the store and got a Toshiba.  It has been a great computer.  That is, except for the Vista operating system.  For me, it has been more of a nuisance.  When you add programs or try to fix something, Vista gets in the way.  Now, it does not recognize my router.  I can not get on the web or upload pictures.  Once I can find a fix, I will  be adding pictures to the posts.