Or lack there of. Read http://www.cnet.com/forums/discussions/laptop-buying-advice/#post-da7ca992-025a-4773-9086-f1d443e405ef
That was a broken laptop at 3 months and calls for 6 months. I'm lucky in my situation but can't imagine what others would do in that situation.
As to reliability, it's important to take care of the laptop and about your comment about touchscreen fails more often. I'm going to agree. The more complicated the machine, the more likely it will fail.
For students a boring run of the mill laptop gets the job done. Here's a CNET fav that I like to mention for students. http://www.cnet.com/products/dell-xps-13-non-touch-2015/
Looking to buy a new laptop and currently cant decide between these two. Very similar only differences between the two is the Pavillion has a touchscreen and a cd/dvd drive and no back lit keyboard. The Envy has a back lit keyboard without the two features of the Pavillion. Would either model be better built or more reliable? I've heard touchscreens break far easier and use a ton of battery power and I'm not sure I would use it that much. Any opinions or other less than $650 laptops welcome!
HP ENVY - 15t Slim Quad Laptop
Windows 10 Home 64
6th Gen Intel(R) Core(TM) i7-6700HQ Quad Core Processor + Intel(R) HD Graphics 530
8GB DDR3L System Memory (1 Dimm)
15.6-inch diagonal Full HD WLED-backlit IPS Display (1920x1080)
1TB 5400 rpm Hard Drive
Office Software Trial
Security Software Trial
6-cell 47WHr Lithium-ion Battery
No DVD or CD Drive
HP TrueVision HD Webcam with Dual Digital Microphone
Intel 802.11ac WLAN and Bluetooth(R) [1x1]
Newest 6th Gen Skylake Intel Core i7-6700HQ 2.60 GHz with Turbo Boost Technology up to 3.50 GHz, Intel HD Graphics 530 with shared graphics memory
8GB DDR3L 1600MHz SDRAM(1 DIMM), 1TB Hard Drive, Tray load DVD Drive (Reads and Writes to DVD/CD), 2 USB 3.0, 1 USB 2.0
15.6 inch Full HD IPS Touchscreen (1920 x 1080), 10-finger multi-touch support, HDMI, 720p HD Webcam
Gigabit 802.11AC WiFi, 1G LAN Ethernet, Bluetooth, Multi-format digital media card reader
Windows 10 Home 64, B&O PLAY with 2 speakers