Cannot format diskette.
Cause
Solution
Invalid media reported.
When formatting a disk in MS-DOS, you may need to specify
diskette capacity. For example, to format a 1.44-MB diskette,
type the following command at the MS-DOS prompt:
FORMAT A: /F:1440
Disk may be write-protected.
Open the locking device on the diskette.
A problem has occurred with a disk transaction.
Cause
Solution
The directory structure is bad, or there is a problem with a
file.
In Microsoft Windows XP, right-click
Start
, click
Explore
,
and select a drive. Select
File
>
Properties
>
Tools
. Under
Error-checking
, click
Check Now
.
In Microsoft Windows Vista and Windows 7, right-click
Start
,
click
Explore
, and right-click on a drive. Select
Properties
then select the
Tools
tab. Under
Error-checking
click
Check Now
.
Diskette drive cannot read a diskette.
Cause
Solution
You are using the wrong diskette type for the drive type.
Check the type of drive that you are using and use the
correct diskette type.
You are reading the wrong drive.
Check the drive letter in the path statement.
Diskette is damaged.
Replace the diskette with a new one.
“Invalid system disk” message is displayed.
Cause
Solution
A diskette that does not contain the system files needed to
start the computer has been inserted in the drive.
When drive activity stops, remove the diskette and press the
Spacebar
. The computer should start up.
Diskette error has occurred.
Restart the computer by pressing the power button.
Cannot Boot to Diskette.
Cause
Solution
Diskette is not bootable.
Replace with a bootable diskette.
Table E-3
Solving Diskette Problems (continued)
178 Appendix E Troubleshooting Without Diagnostics
