If you are in Sri lanka, buy a ASUS lap
But you're in Abroad, buy HP (Probook Series is Good)
Lenovo is also a good brand...But never go for the Tosihiba or Dell..Special Dell laptops...
Im in Aus at the moment but planning to come back SL next year. I've been a HP customer for last 10 years and all the time I had the same hardware issue and they have crappy customer service and parts were expensive. I don't have much option for Asus in here mchn plus most the people I knew suggested to go with either Dell (If keen to spend bit cash) or go with Lenovo . Not sure about the parts in Sri Lanka for both brands

Dell XPS 15 20 ekak gatha ...supiri bande