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Incompatible NTFS?

Have several machines to upgrade.  All were upgraded from Win2K to Vista Business, each of which went off very well (yeah, it was a total reinstall of a new OS and loading the programs fresh, but that's OK) .  Trying to upgrade to 7 gets error that it's unable to install Windows 7 because of an "incompatible NTFS version."  I've tried it on three identical machines with the same error.  If I run the Windows 7 Upgrade Advisor it says that everything's fine and there's no problems.  

If I boot from the CD, there's probably going to be some data or settings losses I really don't want to have to do.  Any suggestions?
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Smugdad
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Smugdad
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3 Solutions
 
NikCommented:
You can try to use Windows Easy Transfer to transfer user acccounts, docs, e-mails from one comupter/installation to another.

Remember, clean install is always a better choice than an upgrade.

Is this a domain environment. Which data needs to be backed up?
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grayeCommented:
Hummm... that's interesting.
Run the following command on one of those PCs, and tell us what it says:
fsutil fsinfo ntfsinfo c:
... in particular, does the version read 3.1?
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SmugdadAuthor Commented:
Reports 3.0, not 3.1
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gatekeeper6838Commented:
Since it was originally running Windows 2000, it's probably using an ancient version of NTFS. Windows 7 was designed to install on more modern versions of NTFS. The NTFS provided with Windows XP is sufficient, but I don't think Win2K's necessarily is. Either way, sounds like you need to reformat using the version of NTFS provided with Windows 7.
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grayeCommented:
Then that indeed is the issue.
You *might* be able do a conversion using a 3rd-party partition tool... but quite frankly, I wouldn't bother.   It'd make better sense to just backup your data and do a fresh install.
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gatekeeper6838Commented:
Just be absolutely sure to *reformat* the drive before doing a fresh install. If you try to do a clean install but still use the same file system, you will get the same error. Use Windows 7's partitioning tools (provided during installation) to reformat the drive with a newer NTFS version.
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grayeCommented:
...and to add on to that comment....  I'd recommend that you use the "advanced" button on the "chose which device to install on" to complete delete the partition.   The reason is that if Win7 sees a "naked" drive, it will create a 100 MB system paritition... otherwise it will not.
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SmugdadAuthor Commented:
THANKS to all of you.  I searched all over the 'net to find this answer and you guys gave me the way to go.
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