I had went to my class today and we usually use laptops for the online portion of class. I would enter the bit locker encryption code and when I would go to login after it would freeze while loading and eventually crash or I would hard reset by holding power for 10 seconds. It would allow me to login half of the time and when it would, the laptop would crash about 30 seconds after loading in. Now I tried everything that I know how to figure out why it was crashing. My guess would be that once it connected to the schools wifi it would crash. It has never done that before but it would crash at about the same exact time each time I got passed the bit locker screen. This was about how long it would take to connect to the wifi. Now the laptop is fine for now. I am writing this message off of it. I am trying to understand why it was doing that and if it wasn't the wifi what are some possibilities it could be and how can I better diagnose it my self or anything for that matter. I am pretty good with hardware but still a software beginner. Laptop is a Dell Inspiron 7500 2n1. Any help or input is appreciated, thanks!