I worked in the bookstore computer repair shop in college and I was one of 2 techs that was actually willing to crack open Windows laptops and work on them. The bookstore had to have an Apple Certified repair shop to be allowed to sell Apple products, so most of our folks got certified as Apple technicians. I never bothered because I always had plenty of work with the myriad random models of laptops that folks brought in that the Apple bros didn't want to touch.