This article was previously published under Q154839
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When you start your computer, you may receive the following error message:
Windows has detected a compressed drive access error
This error occurs when Windows 95 cannot mount the compressed drive usedduring startup because the names of the .bin and the .ini files used forcompression do not match.
Verify that the versions of the .bin files match the compression versionin use. DriveSpace in Windows 95 has file dates of 7/11/95. DriveSpace 3(included with Microsoft Plus!) has file dates of 7/14/95. If the .binfiles do not have the correct date, update the files on the hard disk andthe Startup disk (if you have one).
For additional information about updating the Startup disk, please see thefollowing article in the Microsoft Knowledge Base:
136900 Manually Updating the Startup Disk After Installing Microsoft Plus!
If the Drvspace.bin file is present and the Dblspace.bin file is not, andthere is a Dblspace.ini file, try the following steps. If one step does notresolve the problem, try the next step.
Create a Dblspace.bin file. To do so, follow these steps:
Restart your computer. When you see the "Starting Windows 95" message, press the F8 key, and then choose Safe Mode Command Prompt Only from the Startup menu.
At the command prompt, type the following lines. Press ENTER after each line.
Restart your computer. When you see the "Starting Windows 95" message, press the F8 key, and then choose Safe Mode Command Prompt Only from the Startup menu. At the command prompt, type the following line
scandisk /mount=<yyy> <x>:
where <yyy> is the file name extension of the compressed volume file (CVF), and <x> is the drive containing the CVF. ScanDisk creates a Dblspace.bin file and mounts the CFV. For example, to mount a CVF named D<xx>space.000 on drive C, type the following line: