There Is Not Enough Free Space on... (106228)
The information in this article applies to:
• Microsoft MS-DOS operating system 6.2
• Microsoft MS-DOS operating system 6.22
This article was previously published under Q106228
This information applies to both Microsoft DoubleSpace and Microsoft
DriveSpace. For MS-DOS 6.22, use DRVSPACE in place of DBLSPACE for commands
When you try to resize a DoubleSpace-compressed drive, you may receive
one of the following messages (when drive C is compressed):
DoubleSpace cannot change the size of drive C.
There is not enough free space on drive C to complete this
operation. Delete some unnecessary files from drive C and try
DoubleSpace cannot change the size of drive <H>.
There is not enough free space on your original startup drive, which is
now drive <H>. DoubleSpace will need at least <0.XX> MB of free space on
that drive. Delete some files from that drive, and try this operation
where <H> is your host drive and <0.XX> is the free minimum space needed
on your host drive.
The first error message is incorrect and can occur if you specify too
little free space to be left available on the host drive. For example, if
your drive C is compressed and you type dblspace /size /reserve=0.00 c: at the MS-DOS command prompt and then press
ENTER, you receive this error.
Although the second error message is accurate, you may not be able to
delete enough files from the host drive to allow the resize process to
The minimum free space you can leave on the host drive (for a boot drive)
varies depending on the size of your AUTOEXEC.BAT and CONFIG.SYS files;
however, a general rule is approximately 0.4 megabytes. If drive C is
compressed and you want to leave the minimum space free on the host drive,
type dblspace /size /reserve=0.4 c:
MS-DOS command prompt and then press ENTER.
If you receive the second error message noted above, DoubleSpace cannot
resize your drive due to the large size of your AUTOEXEC.BAT, CONFIG.SYS,
or DBLSPACE.INF file. Use the following procedure to resize your
• Rename CONFIG.SYS to CONFIG.PSS. For example, type ren c:\config.sys
config.pss at the MS-DOS command prompt
and then press ENTER.
WARNING: If your CONFIG.SYS file contains references to device drivers
that are needed to access your hard disk drive, do not rename your
• Rename AUTOEXEC.BAT to AUTOEXEC.PSS.
• Reboot your computer and then resize your DoubleSpace-compressed drive.
• If you still cannot resize your DoubleSpace-compressed drive:
• Copy your DBLSPACE.INF file to DBLSPACE.PSS.
• Edit your DBLSPACE.INF file and remove any comments or other lines
you don't need.
• Reboot your computer and then resize your DoubleSpace-compressed
• Copy DBLSPACE.PSS over the DBLSPACE.INF you modified. For example,
type copy c:\dos\dblspace.pss c:\dos\dblspace.inf at the MS-DOS command prompt and then press ENTER.
• Rename CONFIG.PSS to CONFIG.SYS.
• Rename AUTOEXEC.PSS to AUTOEXEC.BAT
• Reboot your computer so that the original AUTOEXEC.BAT and CONFIG.SYS
files are processed.
To avoid this problem in the future, leave more free space on your host
drive. For example, to reserve one megabyte of free space, type dblspace
/size /reserve=1 c:
at the MS-DOS command
prompt and then press ENTER.
DoubleSpace copies the following files to the host drive so that it can
continue resizing the drive if the power fails during the resize process:
AUTOEXEC.000 ; copy of C:\AUTOEXEC.BAT
CONFIG.000 ; copy of C:\CONFIG.SYS
DBLSPACE.EXE ; copied from C:\DOS
DBLSPACE.HLP ; copied from C:\DOS
DBLSPACE.INF ; copied from C:\DOS
DBLSPACE.WIN ; file to keep track of Windows
DEFRAG.EXE ; copied from C:\DOS
If your AUTOEXEC.BAT, CONFIG.SYS, and/or DBLSPACE.INF files have grown
significantly since you resized your DoubleSpace-compressed drive to its
minimum size, you may not be able to resize the drive. If your DBLSPACE.INF
file has not changed, you need 339,646 bytes free on your host drive, plus
the size of your CONFIG.SYS and AUTOEXEC.BAT files.
NOTE: Using the DoubleSpace command-line switches, you can set the minimum
free space to be left on the host drive to .13 megabytes less than you can
using the user interface of the DoubleSpace maintenance program.
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