Windows Vista - http://www.vistaarticles.com
Windows cannot gain access to this hardware device because the operating system is in the process of shutting down. (Code 46)
http://www.vistaarticles.com/articles/506/1/Windows-cannot-gain-access-to-this-hardware-device-because-the-operating-system-is-in-the-process-of-shutting-down.-%28Code-46%29
By 
Published on 11/16/2007
 
Windows cannot gain access to this hardware device because the operating system is in the process of shutting down. (Code 46)

Windows cannot gain access to this hardware. (Code 46)

The hardware device should work correctly next time that you start the computer.

The device is not available because the system is shutting down.

This error code is only set when Driver Verifier is enabled and all applications have already been shut down.

No resolution is necessary.