Unable to access drive d
Cause: FDISK. FDISK is unable to access the drive you specified.
Action: Turn off your system; then turn it on and retry.
Unable to allocate enough memory
Cause: PCMCIA. PCMCIA could not find sufficient memory to do its job.
Action: Run your memory manager to optimize your memory use or remove some of your TSRs from memory. If
you have many applications currently running in Windows, exit from them and try again.
Unable to create destination
Cause: MOVE. The destination you specified was invalid.
Action: Try the command again using a valid destination.
Unable to create directory
Cause: DOS and COMMANDS. You might have a directory with the same name, the path might not be correct,
the disk might be full or write-protected, or the root directory might be full.
Action: Use the DIR command with the /a switch to make sure there are no hidden directories on the disk with
the same name, and to determine the amount of free space the disk contains. Also, make sure the path is
valid. If you tried to create the directory in the root directory and the root directory was full, move or delete
some unneeded files to increase disk space, or create the directory on a different drive.
Unable to create KEYB table in resident memory
Cause: KEYB. The KEYB command was previously installed, and allocated a specific amount of resident memory
for the tables. The requested configuration exceeds that resident memory.
Action: Restart PC DOS and reinstall KEYB with a new configuration.
Unable to do requested command
Cause: COMMANDS. The network cannot perform the command because of errors.
Action: Check to make sure the network connection is secure and that the network is installed correctly. If the
connection is secure and the installation is correct, you might try restarting your computer. If you continue to
see this message, contact your network administrator, or reinstall the network.
Unable to write BOOT
Cause: FORMAT. The first track of the diskette or DOS partition is bad. The BOOT record could not be written
on it. The diskette or DOS partition is not usable.
Action: Get another diskette and retry the FORMAT command.
Unable to write to destination
Cause: MOVE. There is not enough space at the specified destination.
Action: Do one or more of the following:
o Make sure there is enough space at the specified destination.
o Erase unneeded files from the specified destination.
o Specify a different destination.
Then, try the operation again.
Unknown Media type
Cause: QCONFIG.SYS. You have tried to access media that is not formatted with DOS, only partially formatted,
damaged, or incompatible.
Action: Format the disk, specify another disk to use, or make sure that the media is compatible.
Unrecognized command in CONFIG.SYS
Cause: IBMBIO. An invalid command was detected in the configuration file CONFIG.SYS.
Action: Edit the file, correct the invalid command, and restart PC DOS.
Cause: DOS and COMMANDS. One or more of the switches entered for the command is not valid, is in the
wrong order, or is duplicated. This message might also occur if the command does not use a switch.
Action: Make sure that the character following the slash (/) is valid for the program being run. For information
about the command, check in the PC DOS 7 Command Reference or type at the DOS command prompt the name
of the command followed by /?.
Unrecoverable error in directory
Cause: CHKDSK. CHKDSK encountered an error while checking the directory.
Action: No action is required.
Unrecoverable read error on drive d, side n, track xx
Cause: DISKCOMP or DISKCOPY. Four attempts were made to read the data from the diskette in the specified
drive. The data could not be read from the indicated track and side.
Action: If the error occurred on the target diskette (just created by DISKCOPY), use a different diskette and
retry the DISKCOPY and DISKCOMP commands. Otherwise, copy all files from the damaged diskette to another
diskette. Reformat the bad diskette or discard it.
Unrecoverable write error on drive d
side n, track xx
Cause: DISKCOPY. Several attempts were made to write the data to the target diskette. DISKCOPY continues
copying, but the copy may contain incomplete data.
Action: Use a different diskette and re-enter the DISKCOPY command. Use FORMAT on the bad diskette to see
if it can be reused. If it is a bad diskette, discard it.
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