Solved How to recover hard drive after Format C: command

March 5, 2015 at 05:39:55
Specs: IBM DOS
I have a IBM PS 2/ model 25 8088 processor with a 3.5 inch floppy drive.

I formatted C: drive but after doing so realized the computer would be more valuable with the software that was there.

I have done nothing since running the command and I'm looking for recovery software that will "undo" the format command

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#1
March 5, 2015 at 16:52:14
If you Google "Unformat" there is software around which does this You obviously need something that works from a CD or USB Flash Drive.

Always pop back and let us know the outcome - thanks


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#2
March 5, 2015 at 20:33:55
✔ Best Answer
Ms dos 5.0 and above has an included 'unformat' command which works fine if the format you used created a mirror image file. If none was created you may still be able to recover using 'unformat'.

There is also a stand-alone 'unformat' command in the old Norton Utilities for dos. It works using the same principle as the dos version--looks for a mirror file but if not found will attempt to rebuild anyway. I can email you the NU version if you need it.

Your 8088's floppy drive will be 720K and not 1.44 so if you use a newer dos version that normally comes on a 1.44 disk you'd have to build your own bootdisk in 720 format.


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#3
March 7, 2015 at 09:10:38
It's IBM dos version 3.3. If you can send me a link to NU that works I would greatly appreciate it.

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#4
March 7, 2015 at 17:55:20
I couldn't find a download link for the dos version I have so I'll send you a private message so you can respond to it with your email address. I can either send the entire NU directory--about 9 meg--or just the unformat command along with its help file. As I mentioned the unformat command is stand-alone so you can just copy it to your floppy bootdisk and run it from there.

You can access your messages from this page in the upper right column under 'Your tracked posts/messages'.


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#5
March 8, 2015 at 18:48:48
Tried to send it but it didn't go through. The error message was 'Unknown security or policy concern'. My guess is your gmail didn't like that one of the files was an exe. That's sometimes a problem with it. Try to change your gmail security settings or if you have a non-gmail address I can send it that way.

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#6
March 9, 2015 at 06:39:46
DAVE
Maybe you can upload it here:
http://www.zippyshare.com/

No need to join - just note the URL when uploaded.

Not sure if there is any size limitation but 9M isn't too much. Could be worth a try.

Always pop back and let us know the outcome - thanks


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#7
March 9, 2015 at 19:46:35
Thanks Derek. He posted back with a yahoo address and it went through so I assume he got it OK. I thought about uploading it to one of those sites but I never keep track of them but I'll make a note of that one for future use.

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