Windows 10 won't boot without USB stick

I have just installed Windows 10 final (from USB stick as my laptop does not have DVD). Everything went without a problem. The computer restarts correctly while an USB device is inserted (it does not have to be a bootable drive, it can even be an empty USB stick).

If I remove the USB drive, Windows boot does not complete.

Safe mode boots ok without the stick. Boot log without the USB stick ends like this:

BOOTLOG_LOADED \SystemRoot\System32\drivers\UsbHub3.sys
BOOTLOG_LOADED \SystemRoot\system32\drivers\RTKVHD64.sys

Successful Boot log (with stick in) goes past:

BOOTLOG_LOADED \SystemRoot\System32\drivers\UsbHub3.sys
BOOTLOG_LOADED \SystemRoot\system32\drivers\RTKVHD64.sys
BOOTLOG_NOT_LOADED \SystemRoot\System32\drivers\dxgkrnl.sys
BOOTLOG_LOADED \SystemRoot\System32\drivers\USBSTOR.SYS
BOOTLOG_LOADED \SystemRoot\System32\drivers\monitor.sys
BOOTLOG_LOADED \SystemRoot\System32\drivers\hidusb.sys

Any ideas on what to remove/change/proceed? I really don't want to restore/reinstall.

Thank you!

Answer

Found the answer. Thanks Psycogeek for the hint that it could be USB related. I have installed the Intel Chipset Utility, even if it says it is only up to Windows 8.1 for now (August 2nd 2015). And now a stick is no longer necessary to boot into Windows.

For everyone with this type of problems take a bootlog capture with a bad start and a good start. The bootlog is usally stored in

c:\Windows\ntbtlog.txt. 

The bootlogs recorder in the text file are separated by a date. The problem is one of the listings that