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Why is the upgrade option disabled for vista ultimate

Hi i am tryink to upgrade a xp ome  to vista ultimate using te upgrade opttion. I get the  message that the that odito is disabled because it does not find a previos version of windos. What is the problem , can i fix it . I do have a/an A+ certification so I have a good idia  what I am doing.
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jcw20
Asked:
jcw20
1 Solution
 
David-HowardCommented:
Just wondering if you've run the upgrade advisor.
I'm curious as to if it detects a Windows version.
http://www.microsoft.com/windows/windows-vista/get/upgrade-advisor.aspx
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jcw20Author Commented:
Yes and, it says there are not any problems.
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Seth_zinCommented:
Are you trying to upgrade to vista ultimate 64bit from Windows XP 32 bit by chance? Because then it won't let you upgrade, however this might not be the case, worth asking though.
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jcw20Author Commented:
No 32 I think I'm preety sure.
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Netman66Commented:
Is your XP version legal?

You can check here:

http://www.microsoft.com/genuine/diag/default.aspx

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Ryan_RIT Systems AdministratorCommented:
Do you need any special Hard Drive drivers for setup to detect the drive containing XP?

I assume you're running Vista setup from within XP - not booting from the DVD
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Netman66Commented:
Good point Ryan!

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jcw20Author Commented:
I have tryed both booting from dvd and, within xp. yes both versions of windows are legal. No I don't need special drivers that i know of. I have an A+ certification and, network+. Thats what confuses me I don't see why that should be disabled.
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Netman66Commented:
Is this an OEM version of XP - you cannot upgrade an OEM version.

Post the 3 digit number found on the Properties of My Computer - under Registerd To.  It should look like this:

XXXXX-XXX-XXXXXXX-XXXXX
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Alan HendersonRetired marine engineerCommented:
There's an easy workaround for a CLEAN install of upgrade versions:

http://windowsitpro.com/mobile/pda/Article.cfm?ArticleID=95011&News=1

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jcw20Author Commented:
no this is a full version copy of vista. Iwant to avoid a clean install if posibale.
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jcw20Author Commented:
The  Xp Home came preloaded on the emachine.
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jcw20Author Commented:
I don't think it is oem it does not xxx-oem-xxx-xxx
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Netman66Commented:
What number is there?
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Netman66Commented:
Your OEM build can only be upgraded with another OEM build.

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Netman66Commented:
I've asked for the 3 digits in the center of you product number - when we have those, I can answer your question.
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jcw20Author Commented:
I don't understand what you mean. under mycomputor and properties.
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Netman66Commented:
There is a PID there in My Computer>Properties that looks like:  XXXXX-XXX-XXXXXXX-XXXXX

I need the 3 digit number there.
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jcw20Author Commented:
Tis is the only thing I know.
76477-OEM-0011903-00105
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Netman66Commented:
Here are your upgrade options:

http://www.microsoft.com/windows/windows-vista/get/upgrade-your-pc-options.aspx

You cannot an OEM version of Vista to upgrade any prior OS.

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jcw20Author Commented:
This answered some of quation.
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