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WINDOWS VISTA

Posted on 2013-12-27
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Last Modified: 2014-01-02
You cannot select the Upgrade option when you try to install Windows Vista, and you receive the following message: “Windows cannot determine if another operating system exists on your computer”

Received the above error message when trying to upgrade from Windows XP SP3 to Vista Ultimate - have tried all KB white paper options from Microsoft support.

Please forward all suggestions.

Thank you
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Question by:T5G0H5
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by:Miftaul
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Is your drive partition NTFS, vista wont install on FAT.

and have you edited the boot.ini. Link here
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by:T5G0H5
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The drive is NTFS.

I have tried the solution kb 933166 that you have suggested with the same results - Vista reports the same message.

Thank you
HGT
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by:nobus
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install first XP - then upgrade to vista

or just install a fresh -full version from the upgrade cd :  http://wiki.pcworld.com/index.php/Clean_install_with_a_Vista_Upgrade_disk
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by:T5G0H5
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Please note that the current settings, files and etc are trying to be preserved.

If I understand correctly the suggestion by nobus WILL NOT preserve the current settings,files and etc.

Thank you
HGT
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by:Miftaul
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The safe way for your requirement will be to take backup of the user profile data using files and settings transfer wizard or copying the entire profile folder.

Then install a fresh copy of vista and restore the files and settings.
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nobus earned 500 total points
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>>  Please note that the current settings, files and etc are trying to be preserved  <<  you never told us that.
upgrading a corrupt OS maybe able to fix some problems, but you're never sure
and this is exactly what the error message tells you : "“Windows cannot determine if another operating system exists on your computer”

as said -  backup and do a fresh install; it's the only safe way.

if you want to try further though (understandeable) i suggest to make an image first - to be able to return to the original if something goes wrong.
then try first to repair XP, by running  sfc or a repair :
http://www.updatexp.com/scannow-sfc.html                        SFC use in XP
http://www.michaelstevenstech.com/XPrepairinstall.htm            Repair install  XP

if this is ok, you should be able to upgrade
FYI - i never use upgrades -  i always backup and install fresh
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by:T5G0H5
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To all who responded ,thank you

However the problem was never overcame and I have done a "clean" install and reinstalled software and settings via backup and restore programs

Thank you
HGT
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by:nobus
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tx for feedback
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