diskcopy – Wikipedia

Command that makes a copy of a diskette

Original author(s) Chris Peters
Developer(s) Microsoft, IBM, Digital Research, Datalight, Novell, Toshiba, MetaComCo, Processor Technology, TSL, Imre Leber
Initial release 1982, 39–40 years ago
Operating system MS-DOS, PC DOS, FlexOS, DR DOS, 4690 OS, TRIPOS, PTDOS, AmigaDOS, PC-MOS, ROM-DOS, PTS-DOS, SISNE plus, FreeDOS, OS/2, eComStation, ArcaOS, Windows
Platform Cross-platform
Type Command
License MS-DOS: MIT

In computing, diskcopy is a command used on a number of operating systems for copying the complete contents of a diskette to another diskette.[1][2]


DISKCOPY.COM (among other commands) in IBM PC DOS 1.0.

The command is available in MS-DOS, IBM PC DOS, DR FlexOS,[3] IBM/Toshiba 4690 OS,[4]MetaComCo TRIPOS,[5]Processor Technology PTDOS,[6]AmigaDOS, TSL PC-MOS,[7]PTS-DOS,[8]SISNE plus,[9]FreeDOS,[10] IBM OS/2,[11] and Microsoft Windows.[12]

The MS-DOS version was originally written in August 1982.[13][14]
It is available in MS-DOS versions 2 and later.[15]Digital Research DR DOS 6.0[16] and Datalight ROM-DOS[17] also include an implementation of the diskcopy command. The FreeDOS version was developed by Imre Leber and is licensed under the GNU GPL 2.[18]

The command is not included in Windows 10.[19][failed verification]


  • Copy the complete contents of the diskette in Drive A drive to the diskette in B drive.
  • If there is only have one diskette drive, diskcopy can be done by typing the source drive only. The disk copy program will prompt to insert the second (target) diskette once it finishes reading the complete contents of the first (source) diskette track by track into memory.
  • If only the first side of the diskette needs to be copied, even if the target diskette is double sided, the /1 switch can be used.
  • To make sure the contents are written reliably, the /V switch can be used, but it will cost more time to copy.
  • Force diskcopy to use only the conventional memory for temporary storage:


Diskcopy does not work with hard disk drives, CDs, network drives, Zip drives, or USB drives, etc. It also does not allow diskcopy from 3.5 inch drive to 5.25 inch drives, and vice versa. The source and target drive must be the same size.[20]


  1. ^ “Archived copy”. Archived from the original on 2012-07-12. Retrieved 2012-07-09.{{cite web}}: CS1 maint: archived copy as title (link)
  2. ^ Rügheimer, Hannes; Spanik, Christian (September 14, 1988). AmigaDOS quick reference. Grand Rapids, Mi : Abacus. ISBN 9781557550491 – via Internet Archive.
  3. ^ “FlexOS User’s Guide” (PDF). www.bitsavers.org. 1986. Retrieved 2020-09-14.
  4. ^ [1][dead link]
  5. ^ “Manual” (PDF). www.pagetable.com. Retrieved 2020-09-14.
  6. ^ Leaflet for the Helios II system and PTDOS
  7. ^ “roelandjansen/pcmos386v501”. GitHub.
  8. ^ “PTS-DOS 2000 Pro User Manual” (PDF). Buggingen, Germany: Paragon Technology GmbH. 1999. Archived (PDF) from the original on 2018-05-12. Retrieved 2018-05-12.
  9. ^ “SISNE plus – Referência Sumária”. Datassette. May 14, 2015.
  10. ^ “ibiblio.org FreeDOS Group — FreeDOS Base”. www.ibiblio.org.
  11. ^ “Archived copy”. Archived from the original on 2019-04-14. Retrieved 2019-07-27.{{cite web}}: CS1 maint: archived copy as title (link)
  12. ^ “Diskcopy”. docs.microsoft.com.
  13. ^ Paterson, Tim (2013-12-19) [1983]. “Microsoft DOS V1.1 and V2.0: /msdos/v20source/DISKCOPY.ASM”. Computer History Museum, Microsoft. Retrieved 2015-10-01.
  14. ^ Shustek, Len (2014-03-24). “Microsoft MS-DOS early source code”. Software Gems: The Computer History Museum Historical Source Code Series. Retrieved 2015-10-01.
  15. ^ Wolverton, Van (2003). Running MS-DOS Version 6.22 (20th Anniversary Edition), 6th Revised edition. Microsoft Press. ISBN 0-7356-1812-7.
  16. ^ DR DOS 6.0 User Guide Optimisation and Configuration Tips
  17. ^ “Datalight ROM-DOS User’s Guide” (PDF). www.datalight.com.
  18. ^ “ibiblio.org FreeDOS Package — DiskCopy (FreeDOS Base)”. www.ibiblio.org.
  19. ^ “diskcopy”. docs.microsoft.com.
  20. ^ “ActiveWindows — DOS Diskcopy Command”. www.activewin.com. Archived from the original on July 7, 2011.

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