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Reference number: CH000515

How do I change drives in MS-DOS?

Question:

How do I change drives in MS-DOS?

Answer:

To change the drive letter in MS-DOS, type the drive letter followed by a colon. For example, if you wanted to switch to the floppy disk drive you would type: "a:" at the prompt. Below is a listing of common drive letters and their corresponding devices.

Drive Device
A: Floppy disk drive (Commonly the 3.5" floppy drive).
B: Secondary floppy disk drive, if present (Commonly the 5.25" floppy drive).
C: Computer hard disk drive primary partition (unless the hard drive is not available or is bad). If your CD-ROM is the C: drive your computer is not detecting the hard drive.
D: Commonly the CD-ROM drive or other drive unless the computer hard disk drive has multiple partitions. If multiple partitions exist, your CD-ROM drive will be the last letter; for example, if one extended partition exists, your CD-ROM drive will be the E: drive.

After pressing enter your computer should change the MS-DOS prompt to reflect the new drive letter. If the drive does not exist, you will receive an error similar to the below error.

The system cannot find the drive specified.

If this occurs and you know the drive exists, it is likely that your drive is having problems. See our hard drive, CD-ROM or other drive help section for the drive you are having problems with. If the drive exists but does not have media that can be read you will receive an error similar to the below error.

The device is not ready.

For example, the above error will be received if you attempt to switch the the floppy disk drive with no diskette in the drive.

Tip: If you just want to list the files on an alternate drive you can also type dir followed by the drive letter. For example, "dir a:" will list the files on the floppy drive but will not switch your prompt to the floppy drive.

Additional information:

  • Additional information about viewing available drives on the computer can be found on document CH000854.

 

 

 

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Category:
MS-DOS Q&A

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