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FDISK


Description | Syntax | Parameters | Switches | Related | Notes | Examples | Errorlevels | Availability

Starts the Fdisk program, which configures a hard disk for use with the operating system.

Fdisk displays a series of menus to help you partition your hard disk(s).


Syntax

FDISK [/MBR] [/STATUS] [/X]

FDISK /CMBR DriveLetter:

FDISK [/X] DriveNumber [/PRI:n] [/EXT:n] [/LOG:n] [/PRMT | /Q]


Parameters
DriveLetter: (v7.00)
Drive to write/re-write.
DriveNumber (v7.00)
Drive number, starting at 1 (for C:).

Switches
/CMBR (v7.00)
UNDOCUMENTED. To rewrite the Master Boot Record of NON-PRIMARY drive (drive:). (Can be used to get rid of a Boot Sector Virus).
/EXT:n (v7.00)
UNDOCUMENTED. Create EXTended partition (size in Mb). Limit one (1) per physical hard drive.
/LOG:n (v7.00)
UNDOCUMENTED. Create LOGical DOS volume in extended partition (size in Mb). Limit twenty three (23) per extended partition (one for each drive letter C through Z, A and B reserved for diskette drives).
/MBR (v5.0)
UNDOCUMENTED. To rewrite the Master Boot Record of PRIMARY drive. (Can be used to get rid of a Boot Sector Virus).
/PRI:n (v7.00)
UNDOCUMENTED. Create PRImary partition (size in Mb). Limit one (1) per physical hard drive. Maximum size: using FAT16 is 2Gb, using FAT32 is 2000Gb. Win95 limited to 32Mb? Win98 limited to 64Mb?
/PRMT (v7.00)
UNDOCUMENTED. Prompt for actions.
/Q (v5.0)
UNDOCUMENTED. Quiet, do not display messages.
/STATUS (v2.0 Win95)
Displays an overview of the partition information of your computer's hard disk(s), without starting the Fdisk program.
/X (v7.00 Win95)
Ignores extended disk-access support. Use if disk-access or stack overflow errors occur.

Related

none.


Notes
Using Fdisk to partition a hard disk

You can use FDISK for:



CAUTION Do not experiment with Fdisk. If you accidently delete a drive or partition, you will lose data from your hard disk.


Viewing partition information quickly and easily

To display an overview of your computer's partition information without having to start the Fdisk program, use the /STATUS switch. If the /STATUS switch doesn't provide enough detail about your hard disk, then start the Fdisk program without the /STATUS switch and choose option 4.


Changing the size of a partition

To change the size of a partition, you must actually delete the partition and create a new one with a different size or use a Partition Resizer.


Maximum partition size

The maximum partition size was 2 gigabytes.

CAUTION: Deleting a partition deletes all the data stored on that partition.


Using Fdisk with SUBST

Fdisk does not work on a drive formed by using the SUBST command.


Limits of Fdisk

Fdisk does not work on a network or an Interlnk drive. Fdisk works only on hard disks physically installed on your computer.


Fdisk and Compressed Drives

If your computer includes compressed drives, Fdisk does not display information about those drives. A compressed disk drive exists on your physical disk as a hidden, read-only system file called a compressed volume file (CVF). The CVF is associated with a drive letter; you can then use the files stored in that CVF. However, to Fdisk, the compressed volume file is not a separate drive; it is a file just like any other file.


Examples

none.


Errorlevels

none.


Availability
External
DOS
v2.0 v2.01 v2.05 v2.10 v2.11 v2.11R v2.12 v2.2 v2.25 v3.0 v3.20 v3.05 v3.1 v3.21 v3.25 v3.30 v3.3A v3.3R v3.3T v3.31 v3.40 v4.0 v4.01 v4.01A v5.0 v5.0A v5.00.02 v5.001A v5.01 v5.02 v6.0 v6.10 v6.2 v6.21 v6.22 v6.23 v7.00 v7.0R1 v7.10 v8.00
Windows
Win95 Win98 WinME
Windows NT
none