Have an old(ish) laptop with a "Pentium T4400 @ 2.20 GHz" processor, and some old software that requires "Win 95 or NT".

With a view to running this software on that hardware, I tried installing windows 95, 98, ME, 2000, and NT from CD-ROM with no success whatsoever.

Can it be a configuration problem? Which is the latest processor I can use for this software?

IIRC, windows 98 & ME are versions of 95, and 2000 is a version of NT? Later windows versions are more different?

Edit: the software in question does not run on Windows 7 or 10.

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    What's the software you're trying to run? There's a good chance it can work on Windows 7 or 10. – Ross Ridge Nov 1 '18 at 15:51
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    A screenshot of it makes it look like it might a 16-bit program, in which case you would need a 32-bit version of Windows 7 or 10. – Ross Ridge Nov 1 '18 at 16:14
  • Okay... worth a try I guess. – Tomas By Nov 1 '18 at 16:22
  • Those considering this question off-topic: why? Is it because it's a general software-compatibility question? If so, it could form a useful canonical for duplicates to be closed to. – wizzwizz4 Nov 1 '18 at 20:16

Windows 2000 is the latest (5.0) version of NT. Last Update was 2005, EOL in 2010. The Laptop isn't anywhere near being old (or OT here), as its at maximum from 2010. While this seem late, it should be possible to install Win2k, update it to SP4 and include drivers for the Laptop from XP, as the original XP driver model is still compatible with NT/Win2k.

Then again, without more information why installation failed, it's hard to even randomly guess why it doesn't work.

Further, software made for NT should, in most cases, run on XP and even Windows 10. Of course, depending on what OS services it uses. So again, without a more detailed information about it's impossible to give a real answer.

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    "Windows 2000 is the latest (5.0) version of NT" ... from a certain point of view. Of course, Windows XP is NT 5.1, if you ask it for its version number ... – Jules Nov 1 '18 at 19:31
  • Well, at that point I go with Microsoft, who marketed W2K as NT - while XP was defined as being an NT replacement - and realy did offer new structures. Furtehr, the Version number isn't any indication here, as it's a continued scheme since Windows 1.0 – Raffzahn Nov 1 '18 at 21:05
  • The first release version of Windows NT was 3.1, which was followed by 3.5, 3.51, 4.0, before it became Windows 2000, before it became Windows XP, before it became Windows Vista, before it became Windows 7, ... The DOS-based Windows lineage (1.0, 2.0, Windows/386, 3.0, 3.1, 3.11, '95, '98, ME) is a different product with a different code base. I distinctly recall Microsoft branding Windows 2000 as "built on NT technology", so I guess one could argue both ways whether it's Windows NT or not. Wikipedia says that beta 3 onward, Microsoft called it Windows 2000, as opposed to Windows NT 5. – a CVn Nov 2 '18 at 10:26

Windows XP Mode

Quite a bit of older software will NOT run natively in Windows 7 or above. However, most of this software, whether DOS-based or older Windows software, will run just fine in Windows XP Mode.

Unfortunately, Windows XP Mode is not available for Windows 10. I have quite a few customers where I have stuck with Windows 7 specifically in order to run Windows XP Mode to run older software. Actually, most of them (and many of my other customers) prefer the "classic" Windows interface used from 95 through 7 to the newer 8/10 interface anyway, but I digress.

Other than the now very rare (for me at least) hardware issues requiring older systems to run properly, I have not had any significant problems getting the oldest software - including much that would quality as Retro (> 20 years old) running well in Windows XP Mode in Windows 7.

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