Microsoft DOS drivparm command

drivparm commandAbout drivparm
Drivparm syntax
Drivparm examples

About drivparm

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


The drivparm command is an internal command that is available in the below Microsoft operating systems.

All Versions of MS-DOS
Windows 95
Windows 98
Windows NT

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 will be able to tell that the floppy disk
drive door is open.
/f:factor Specifies drive. Default value is 2.
0 - 160K/180K or 320K/360
1 - 1.2 megabyte
2 - 720K (3.5" disk)
5 - Hard disk
6 - Tape
7 - 1.44MB (3.5" disk)
8 - Read/write optical disk
9 - 2.88MB (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 will vary depending upon the factor selected.

Drivparm examples

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

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