Applies To: Windows Server 2003, Windows Server 2003 R2, Windows Server 2003 with SP1, Windows Server 2003 with SP2


Data type Range Default value


0–99 (percent)



Specifies the percentage of disk space that must remain free for use. If the percentage of free space falls below the value of this entry, then the Server service records the following event in the System Log in Event Viewer:

"The <disk-letter> disk is at or near capacity. You might need to delete some files." (Srv Event ID 2013)

If the value of this entry is zero, then the system does not check the percentage of free space on the disk; it also does not check for free space in megabytes as specified by LowDiskSpaceMinimum.

This entry does not exist in the registry by default. You can add it by using the registry editor Regedit.exe.

See Also