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Process.PriorityBoostEnabled Property

Gets or sets a value indicating whether the associated process priority should temporarily be boosted by the operating system when the main window has the focus.

Namespace:  System.Diagnostics
Assembly:  System (in System.dll)

public bool PriorityBoostEnabled { get; set; }

Property Value

Type: System.Boolean
true if dynamic boosting of the process priority should take place for a process when it is taken out of the wait state; otherwise, false. The default is false.


Priority boost information could not be retrieved from the associated process resource.


The platform is Windows 98 or Windows Millennium Edition (Windows Me), which does not support this property.


The process identifier or process handle is zero. (The process has not been started.)


You are attempting to access the PriorityBoostEnabled property for a process that is running on a remote computer. This property is available only for processes that are running on the local computer.


The process Id is not available.

When a thread runs in a process for which the priority class has one of the dynamic priority enumeration values (Normal, High, or RealTime), the system temporarily boosts the thread's priority when it is taken out of a wait state. This action prevents other processes from interrupting the processing of the current thread. The PriorityBoostEnabled setting affects all the existing threads and any threads subsequently created by the process. To restore normal behavior, set the PriorityBoostEnabled property to false.


Boosting the priority too high can drain resources from essential operating system and network functions, causing problems with other operating system tasks.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

  • LinkDemand 

    for full trust for the immediate caller. This member cannot be used by partially trusted code.

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.