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Vista 32 bit to windows 7 64 bit with upgrade disc

  • Windows 7
  • Windows Vista
Last response: in Windows 7
January 20, 2010 7:43:27 PM

I currently have vista 32 bit installed and was thinking of upgrading to windows 7 64 bit. From what I've read, it is possible to do this using the upgrade disc, but not with the in place upgrade. Wondering if anyone could explain how to do a proper clean install using the upgrade disc. Thanks.

BTW, I am running the home edition of vista and would be going to home premium of windows 7 if that makes any difference.

Thanks again

More about : vista bit windows bit upgrade disc

Best solution

a b $ Windows 7
January 20, 2010 8:22:05 PM

To install using an upgrade install disk (Must Own a qualifing Operating system - Does not have to be installed).

Do a Clean Install, But DO NOT enter your Key
Goahead and let windows 7 down load critical updates. Then:

Open regedit.exe with Start Menu Search and navigate to:
Easier - Just do a search for " MediaBootInstall"

Change MediaBootInstall from "1" to "0". (Double-click it and then enter 0 in the dialog that appears.)

Close RegEdit.

Open the Start Menu again and type cmd in Start Menu search to display a shortcut to the Command Line utility. Right-click this shortcut and choose "Run as administrator." Handle the UAC prompt.

In the command line window, type: slmgr /rearm

Then tap ENTER and wait for the "Command completed successfully" dialog.

Then, close the command line window and reboot. When Windows 7 reboots, run the Activate Windows utility, type in your product key and activate windows.

Alternate procedure:
Do a clean install - BUT DO NOT enter Key
After you have done a clean instal, Do an install a 2nd time like you would for upgrade, this time enter your Key.
a c 209 $ Windows 7
January 20, 2010 8:23:46 PM

Yes, a 32- to 64-bit "upgrade" can use the upgrade disc but it must be done using a clean install.

If you boot from the 64-bit upgrade disk, it should find the existing Vista installation and allow you to perform a clean install. The old system will end up in a folder called "Windows.Old".

If you want to install to a brand new disk and keep the old one disconnected so that you have a fallback plan, then you can follow the instructions here:
Related resources
January 22, 2010 12:58:30 AM

Thank you very much to the two of you.
Will hopefully buy windows 7 soon.
Thanks again
January 22, 2010 12:58:45 AM

Best answer selected by kronos2000.