Boot Manager Status: 0xc000000f boot selection failed  

Code:

Windows failed to start. A recent hardware of software change might be the cause. To fix the problem:

1.Insert your Windows installation disc and restart the computer.
2.Choose your language settings, and then click "Next".
3.Click "Repair your computer."

If you do not have this disc, contact your system administrator or computer manufacturer for assistance.

Status: 0xc000000f

Anyone got a 0x9f bugecheck on rebooting after updating from Build 9841 to Build 9860? No .dmp files written to system. After 3 or 4 hard resets, W10TP finally booted as normal.

Looks like Windows tried to boot from my USB-connected Garmin GPS??? This was the first time I had connected the Garmin using Build 9860. Previously it had been connected multiple times on Build 9841 without any trouble at all.

From eventlog:

Code:

Event[2915]:
  Log Name: System
  Source: Microsoft-Windows-UserPnp
  Date: 2014-10-23T19:20:04.998
  Event ID: 20001
  Task: N/A
  Level: Information
  Opcode: Info
  Keyword: N/A
  User: S-1-5-18
  User Name: NT AUTHORITY\SYSTEM
  Computer: Colin-Laptop
  Description: 
Driver Management concluded the process to install driver wpdfs.inf_amd64_2f5838d6d988be9a\wpdfs.inf for Device Instance ID SWD\WPDBUSENUM\_??_USBSTOR#DISK&VEN_GARMIN&PROD_EDGE_500_FLASH&REV_1.00#0000E5CF8EF0&0#{53F56307-B6BF-11D0-94F2-00A0C91EFB8B} with the following status: 0x0.

I got lot's of errors, but no BSOD crashes. 0x80246007 was the most common one.
I restarted about 10 times, and shut completely down before restarting 3 times (in a Virtual Box VM).
Finally gave up and let it rest for a couple of hours - then it went in without problems!
ArrrrrgggggghhhhhhhH!!!!!!!!!