MS-DOS and Windows command line drivparm command

Updated: 07/13/2023 by Computer Hope
drivparm command

The drivparm command allows the default or original device driver settings to be overridden when the config.sys is loaded.


Drivparm is an internal command that is available in the following Microsoft operating systems.

Drivparm syntax

DRIVPARM=/d:number /c /f:factor /h:heads /i /n /s:sectors /t:tracks
/d:number Specifies physical drive number. Numbers must be in the range of 0 to 255.
/c Specifies that the driver can tell that the floppy disk drive door is open.
/f:factor Specifies drive. Default value is 2.
0 - 160 K/180 K or 320 K/360 K
1 - 1.2 megabyte
2 - 720 K (3.5" disk)
5 - Hard disk
6 - Tape
7 - 1.44 MB (3.5" disk)
8 - Read/write optical disk
9 - 2.88 MB (3.5" disk)
/h:heads Specifies the maximum number of heads.
/i Specifies an electronically-compatible 3.5" floppy drive.
/n Non-removable block device.
/s:sectors Number of sectors per track, ranging in value from 1 to 99.
/t:tracks Number of tracks per side on the block device, ranging from 1 to 999. Default values vary depending on the factor selected.

Drivparm examples

drivparm=/d:1 /c /h:2 /s:9 /t:80

Configures a 3.5" 720 K floppy drive. This line would be loaded in the config.sys.