View Full Version : Incorrect DOS version

01-01-2001, 04:33 PM
Firstly Happy New Year to every body

I was trying to do a friend a favour (season of good will and all that) by reformatting his hard drive. Having done it a good few times with my own machines l didn't think it would be a problem ......
I used a Win 98 start disc and it came back with " Incorrect DOS version"
What is the the best way to proceed?
I went to MS knowledge base and found something using (SETVER) is that the best way to go?
The machine in question is a Olivetti 42P D2/66, Win 95 32mb ram.
The version of DOS is 6.2 and he has 6 Win 95 setup disc's. I found this unusal as the machine had a CD ROM installed from new.


01-01-2001, 06:49 PM
Use the Dos6.2 disks for fdisk and format
It does not support 32bit format or large partitions (In Win98)
OR Use the copy in win 95 setup disks.
it should have a boot disk.
Win95 and Win98 are not the same DOS ver.

Paleo Pete
01-02-2001, 07:36 AM
If you're trying to install win95B it will use FAT 32, but is currently running FAT16, with DOS 6.2 and the DOS 6.2 or win95 start up disk will be needed, as stated above.

If the OS will support FAT32, try running fdisk and setting it up as FAT32, then you can use the win98 start up disk, or should be able to. Fdisk won't run if you try to use the wrong version of DOS. That's the main problem. You have to use the same version that was used originally.

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01-02-2001, 06:53 PM
Thanks for the replies Rick and Pete.

On further investigation the disc's are for Win 3.1. and the Hard drive is 420Mb.
I used FDISK and then FORMATTED the drive using the Dos6.2 disc's.

Is it better to install win3.1 and then win95 or can l install a cdrom driver and just install win95 from the cd.
If the second option is best how do l transfer the drivers? I believe you need MSCDEX is this correct?


Paleo Pete
01-04-2001, 11:09 AM
With a 420 MB drive I would say stick with win3.11, if you install 95 you'll run out of hard drive space in a big hurry. I ran 95 on a 486 with a 420 MB drive for 2 years, and constantly had to uninstall programs to add anything else, as well as deleting temp files, cache, recycle bin and temporary internet files daily to keep more than 50MB for windows to use as a swap file. Windows 95 likes to have 100 MB available, but will run with a 50MB swap file, although it won't like it.

By the way, trying to install a second hard drive in that 486 for more drive space was what got me into computer building and repair. The original drive decided to quit and we had to start all over with a smaller 340MB drive, and after all the 4 hours of hassle I decided the next time I had to open the case I would NOT ask anyone else any questions...I didn't either, I upgraded to a P-166 and 2.8GB drive about 6 months later completely by myself. 4 years later here I am helping other folks learn to do it...

To install 95 anyway, you don't have to have win3.x installed, just point setup toward the first win3.x setup disk when the setup looks for an OS.

DOS will have to be installed first, then CD ROM drivers can be installed, they can be downloaded from Windrivers (http://www.windrivers.com) or Winfiles (http://www.winfiles.com). Make sure you get DOS drivers, win95 drivers are usually for after win95 is installed. Some specify DOS/win95, those should work.

I would go with DOS/win3.1 if it were me.

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01-08-2001, 10:01 PM
Thanks Pete.

I eventually got the PC up and running, after a lot of going round in circles. ( I will definitely have read up on Dos, l am a dos disaster )
Against your advise l loaded win95 on the machine as it doesn't have a modem and is mainly used to word processing and some spreadsheets. He has 330-340mb free, better than the 30-40 when l got it.
It was interesting seeing a diferent compact desktop design- the m/b only had 1 ide connector and the cdrom was connected via the sound card, it also had p/s 2 connectors on a machine that must be 5-6 years old ( l thought p/s 2 came in after DIN plugs and serial ports.)

Like yourself l'm started tinkering with PC's when l had to upgrade a hard drive, but l think l would need 40 years to attain your level of knowledge. For machines designed to save time and make things easy they certainly have a way of undoing that myth.

Going back to my original point, l have presumed that it's not possible to upgrade Dos versions easily, is it embedded some how in the hardware?

Thanks again for the advise and the links

Paleo Pete
01-08-2001, 11:38 PM
Upgrading DOS itself is not difficult, just pop in the first install disk and type setup. It will see that you have another version of DOS already and either upgrade or tell you to format and install fresh, I usually install DOS from scratch anyway, I'd rather have it on a clean hard drive to begin with.

If the machine you're dealing with still has over 300 MB free space that's not bad at all, it should work ok, but watch the free space when installing other programs, don't let it get under 100MB and it shoud do fine.

PS/2 was first seen on the IBM PS/2 machines about 1985 or so, maybe earlier, I'd have to look it up... PS/2 has been around quite a while. I've seen 286 machines by NEC with PS/2 keyboard plugs, have one here that's in dire need of another motherboard...I'd love to get it running, my only other 286 died and couldn't be revived. Haven't found another one or a motherboard in 2 years of looking...and passed up the only one I found, didn't know I needed it at the time...

MS DOS Help and Commands (http://www.computerhope.com/msdos.htm)

Learning DOS Basics-A Tutorial (http://www.tnd.com/camosun/elex130/dostutor1.html)

Check around in local used bookstores and resale shops, they sometimes have older DOS books cheap. I've picked up several, including 2 or 3 Microsoft DOS user's manuals. All were under a buck.

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