Windows 7 Upgrade from 32 bit to 64 bit (valid key)

I have an old computer upgraded from Windows XP to Windows 7 32 bit, using a Windows 7 upgrade CD long ago. I want to upgrade to Windows 7 64 bit using a clean install from a Windows 7 OEM disc I used on another computer, I built. Can I activate the new installation of Windows 7 on the old computer from the OEM disk using the key from the old drive to upgrade to Windows 7 or y at - it another way to upgrade Windows 7 32 bit to Windows 7 64 bit in this case? Thanks for the help.

You will need to do a custom Setup during the migration from 32 to 64 - bit versions of Windows:

How to: perform a customized Windows installation

Be careful, this other computer recovery disk may be only for use with the computer, with which he came. In addition, the edition must match the product key you plan to install, if they don't, it won't work.

If its a version of upgrade / full license or OEM System Builder detail disk then you can use it.

Keep in mind, the editions must match.

Consider the following text:

How to: What are my options for Windows 7 reinstall media?

Tags: Windows

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    Update XP 32 - Bit for the 64-bit version is not recommended. Instead, you should look at Windows 7 as an alternative.

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    Windows 7 Upgrade Advisor
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  • While Windows anytime upgrade from Win7 Home Premium to Win7 Pro received the notice that failed.

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    I'm doing an anytime upgrade from Win7 Home Premium to Win7 Pro. I get a notice that failed and get back to home premium.

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    See: http://support.microsoft.com/kb/2660811

    = Other reasons and possible corrections.

    Windows Anytime Upgrade fails with the error:
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    http://support.Microsoft.com/kb/2658652

    -------------------------------------------------------------------

    (A) if at any time the upgrade fails: run the Windows 7 Upgrade Advisor:

    http://www.Microsoft.com/Windows/Windows-7/Upgrade-Advisor.aspx

    --------------------------------------------------------------------

    (B) If Internet Explorer is not configured as default web browser,
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    --------------------------------------------------------------------

    Only one solution was either by picking up the Internet
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    --------------------------------------------------------------------

    (C) you get a PIN number with the "Anytime Upgrade", if yes enter the PIN here to obtain a product key: https://windows.getmicrosoftkey.com/

    Support for your product key: https://windows.getmicrosoftkey.com/Home/Support

    --------------------------------------------------------------------

    (D) stop and restart your computer.

    (1) implementation of the reinforced system - method #2 tool (download and run the tool: "Checksur.exe")
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    (2) disable any security software before attempting to upgrade

    (3) disconnect external devices of unneccesarry.

    -------------------------------------------------------------------

    (E) if still Anytime Upgrade fails, turn off User Account Control:

    1. go in user accounts in Control Panel

    2 change user account control settings

    3. pull the slider to the level as low as possible

    4 restart the computer

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    -------------------------------------------------------------------

    (F) if it continues to fail, try the following 3 methods:

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    Method #2
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    Method no. 3
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    -Anytime Upgrade may not work for all versions of Windows-

    Note: Retail 'Full' or 'Upgrade' product keys will work when you use the Express Upgrade feature.
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    J W Stuart: http://www.pagestart.com

  • Accidentally purchased Windows 7 Upgrade from Vista but they have XP

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