The Thread Priority box shows the base priority of the thread selected in the Thread selection list box. This is not an absolute priority, but is a range of priorities that can be assigned by the operating system to the selected thread.
|Highest||Highest priority level allowed by the process priority.|
|Above Normal||Slightly elevated priority.|
|Normal||Standard priority level for the given process priority.|
|Below Normal||Reduced priority.|
|Idle||No CPU time will be spent on this thread unless all other threads are blocked.|