NTFS.sys isn't a website, it's a driver. In fact, it's the driver for the file system on your hard disk. Quite essential for a working PC.
This error points to either:
a. A bad driver coming with your Wndows file system: reinstall from another copy.
b. A corrupted file system: run chkdsk (although that doesn't find all corruption)
c. An error on the hard disk. if chkdsk with surface check and the manufacturers diagnostics find nothing, replace it.
Anyway, exception should always be handled, so it can be considered a bug in the driver also. You've got to contact the maker (Microsoft) about their point of view.
Ir it's a different error another time, it points to bad RAM or a bad CPU. Run diagnostics, if you have (for RAM: download memtest86, free) or replace it.
Kees
It takes 3 minutes for my computer to shut down. It is often, but not always; takes some time with start. The message comes with it ,
" Your computer ran into a problem and needs to restart. We're just collecting some error info, and then we'll restart for you".
It takes, best part of five minutes.
It always gives the source of the fault with reference to a website for explanation. Not that I could make any sense of it. This last time it said,"Kmode_Exception_Not_Handled. (NTFS.sys)
Any solution will be appreciated

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic