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Windows 7: Will a Vista Ultimate disc upgrade overwrite the 7 RC

17 Aug 2009   #1

Mac OS X 10.8.1
Will a Vista Ultimate disc upgrade overwrite the 7 RC

I ordered a Vista Ultimate Upgrade disc to get rid of the Windows 7 RC 32-bit. Since 7 is newer, they say it won't work, but I've heard from two sources that booting from BIOS would overwrite 7. Is this true? I don't care if it cleans my HD, I already backed up.

My System SpecsSystem Spec
17 Aug 2009   #2

Windows 7 Ulti. x64

I think you will need a vista or xp install disc to make it work. Not sure about installing from within win 7 rc to upgrade to a vista ultimate. Good luck to you.
My System SpecsSystem Spec
17 Aug 2009   #3

64-bit Windows 8.1 Pro

You really want to do a clean install when downgrading like that...
My System SpecsSystem Spec


 Will a Vista Ultimate disc upgrade overwrite the 7 RC

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