*resists the urge to ban MarkW for the sassy answer*
To actually answer the question and help the user (ahem), check here:
http://www.tomshardware.com/forum/id-2587586/windows-boot-loop.html
A few users on Reddit also encountered a similar problem:
https://www.reddit.com/r/Windows10/comments/38aa8a/for_everyone_thats_getting_stuck_in_a_boot_loop/
The fix there involves BIOS changes, so it would depend entirely on what type of laptop you were having the issue on.
Hope this helps!
-JP