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WIN95 and DOS basedQuantum Dynamic drive overlay

Posted on 1997-03-01
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Last Modified: 2013-12-16
My current harddisk is a Quantum Fireball on 1040 MB (at least a bit over 1
GB). In order to be able to acces the whole harddisk capacity, running under DOS, without partitioning it, i have installed Quantum Dynamic drive overlay V7.01 from
Ontrack Computer Systems. It is AFIK installed somewhere in the FAT partition. It is at least activated before DOS when starting up, and is not represented in the autoexec.bat or config.sys.
I did not installed the 32 disk access option in Quantum Dynamic drive overlay. This just means that i can't use 32 bit diskacccss in WIN31.
I do have the overlay program disk and are thus able to uninstall it.
My BIOS DO support the HD size (i autodetects it correctly) so the only purpose for installing the overlay program was to avoid the partitioning of the disk.
All in all i wolud like to get rid of Quantum Dynamic drive overlay in the process of upgrading from DOS to WIN95.


Questions:

Will uninstalling the Dynamic drive overlay under DOS, i.e. before installing WIN95, destroy all data or only the ones located above 540MB?

Is it possible to install WIN95 and then uninstall the overlay without loosing data?  (Will this lead to an non optimal format of the HD, I.E cluster size?)
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Question by:garner2
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Accepted Solution

by:
rc01 earned 100 total points
ID: 1744140
You can do an "fdisk /mbr" to restore the master boot record (which the Ontrack DDO has installed itself onto) to it's normal self.

In your case, I would install Win95 first, then do the fdisk /mbr from a dos prompt (restart the machine in ms-dos mode, not using a dos window.)  Then go into CMOS and have it auto-type your drive.

This will work assuming your BIOS really can auto-type your drive.  If it can't, you're going to loose the data trying to re-install Ontrack.  You may want to consider just leaving it installed.
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