The HAL Upgrade/Downgrade Utility is used to upgrade from the Uniprocessor HAL and kernel files to the Multiprocessor HAL and kernel files. Both the HAL and the kernel files are located on the Microsoft Windows NT Workstation 4.0 CD.
The Compaq HAL Recovery Option is a feature that allows a user with a multiprocessor system to recover from blue-screen traps which might occur as a result of any of the following:
- Mismatching hardware with the installed HAL (e.g., multiprocessor HAL with one processor only)