Re: Downgrade from Windows XP to 2000 Pro

dubina wrote:
> i want to downgrade from Windows XP to 2000 Pro. This process can't
> be done without formatting system drive and installing 2000 from
> scratch, but the question is not in that.
>
> The thing is, XP uses NTFS v5.1 and 2000 uses NTFS v5.0. When I boot
> into 2000 and browse my other drives (that are formatted to NTFS
> 5.1), some files become unreadable. But when I boot into XP again,
> everything works and reads just fine.
>
> So my question is: what are the differences between NTFS 5.1 and
> 5.0? How can I "convert" XP-version NTFS to 2000-version NTFS and
> have all my data there?


Actually... the NTFS versions are:

NTFS 1.2 <=> WinNT
NTFS 3.0 <=> Win2K
NTFS 3.1 <=> WinXP/2003

Version 1.2 is sometimes known as 4.0. (After NT 4.0)
Versions 3.0 and 3.1 are sometimes referred to as 5.0 and 5.1 (After their
respective Windows versions.)

Essentially - new features have been incorporated into each subsequent
version. I could not find a comprehensive list - if such a public lists
even exists. However - I will tell you that your only SURE way to make sure
you can access your data is to copy it off to a neutral area(in terms of
file system) and copy it back after the format/install.

--
Shenan Stanley
MS-MVP
--
How To Ask Questions The Smart Way
http://www.catb.org/~esr/faqs/smart-questions.html


.

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