Yes, a laptop and computer repair business can be profitable. With the right business plan, marketing strategy and customer service, you can create a successful business that will bring in loyal customers. You can offer a variety of services, such as hardware and software repairs, virus removal, system upgrades, data recovery, and more. Make sure to invest in good quality tools and equipment to ensure you are providing the best service possible. Additionally, you should focus on building relationships with local businesses, as they tend to be some of the best customers.