Good grief.Please don’t take this too personal.
Please pay attention to what the original poster wrote.
He has personal data on an old computer running DOS,not any version of Windows.Worse,his old monitor (display screen) is bad and it is also a really non-standard one.
He is using a different and much newer computer to post here.
The apparent goal is recovery of data of personal value,not re-use of a tiny old hard drive.
Telling him to run a hard drive erasing program that won’t even begin to load on an old DOS computer is a sign somebody didn’t read the original question.
The old computer’s hard drive is not compatible with any of the external hard drive enclosures sold now. Not IDE,.not PATA or SATA or USB.
All these Windows tips are not relevant until he gets the data off the old drive and onto a newer one.
This thread is not unique;in every computer forum I see lots of people posting answers who ASSUME the person asking for help must be using the latest version of Windows ,regardless of all the contrary info posted in the question.
Your reply does not apply to my post.