If you are having a problem with the hal486c.dll file, you have an issue with the Hardware Abstraction Layer for Microsoft Windows NT Operating System from the Microsoft Corporation. A Hardware Abstraction Layer (HAL) is a very low level software translator that sits between your motherboard and other layers of software, including your operating system. It is a driver for the hardware that is an integral part of your computer. Problems with the HAL will make your computer break on a fundamental level. Try to clean your registry to solve this issue.
Every file installed on your computer has an entry in the registry that tells Windows where to find it and how to use it. If there are errors in those entries, Windows gets confused and your software will no longer work like you expect it to. ZookaWare PC Cleaner cleans up the errors in your registry. ZookaWare PC Cleaner finds and fixes every registry mistake, guaranteed, and gets your system back to where you need it to be. Try a free ZookaWare PC Cleaner scan now to find out how many errors there are in your registry.