I had bough a HP 15 Laptop and it started behaving weird after working fine for few months. The screen showed up unusual lines on it and the lines increased day by day. After some days they disappeared. Then again they came back.
Be careful before you buy HP laptops. Read the product reviews and carefully decide before buying. They are for sure value for money but the durability is not so good compared to other brands. The service and support is also not that good. This is my second HP laptop and I am not going to buy it for the third time. Terrible experience.