Hmm.
I remember my Windows 95 computer had a lot of games on it, mostly shareware from new indy developers. What I can remember is Jazz Jackrabbit, Hocus Pocus, Wacky Wheels, Halloween Harry, Doom2, Monster Bash... a lot of Apogee games at their start.
No, wait, earlier - my friend's computer. So probably Jazz Jackrabbit or Sam and Max Hit the Road. There's some others I don't remember the names of, like a point-click adventure game about a kid's summer guided by his grandfather's ghost, some Rube Goldberg machine builder and various other stuff.