This has been happening since I started MC W10 editon (1.2 to present day)

When I get on, everything's fine. I'm on my own world, hosting server or not, and it'll be at random where I'm breaking blocks and in the middle of breaking that block (completely random block at any time, but it doesn't usually happen within the first 5 minutes of playing), my game freezes for a second, white screens, and it used to just end the game process and bring me to desktop. But as of like 1.4 or 1.5, it doesn't go out of whitescreen no matter what I do. Ctrl-Alt-Del, alt-f4, esc, task manager can't open cause c-a-d won't do anything. Windows key doesn't do anything. Nothing does anything. I tap power button (not hold) and it does nothing. But I hold it to battery reset and it does what it's supposed to do (complete instant shutdown). I want to play solo or host but I can't due to this. Please help.

PS: Sis has an almost identical computer (different color, year older, same model) and she does not get this problem. This doesn't happen on my phone. This only happens playing Minecraft Windows 10 edition. Our laptops are HP 15-f222wm