Actually it equals 5 HOURS. Pretty easy overnight/ at work update.
50k is connect speed. What the actual download speed is going to average is at tops 15-20 MB per hour. 900/15 = 60 hours or 45 hours at 20 MB per hour. But an impossible feat when the ISP only stays connected 5 hours. If they were going to do a nearly 900 MB upgrade it needed to be on a disk as well. The point I made in a previous post many users even on high speed have limited monthly usage. Poor planning on the part of MS or likely just their typical corporate apathy concerning customers needs.
W8 has become an obsession with Microsoft. It was a mess from the beginning. It should have been pulled until they resolved issues they obviously did not test for with actual typical users.