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Upgrade from evaluation copy to windows 7

Last response: in Windows 7
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October 26, 2009 10:19:10 AM

While upgrading from RC to RTM will i have to format my system completely or only the drive in which windows 7 is installed.
a b $ Windows 7
October 26, 2009 10:37:35 AM

Only the drive it's installed on. It's also best to disconnect other drives during installation just to be on the safe side. We've all mis-clicked or had an installer catch us out!
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a b $ Windows 7
October 26, 2009 11:44:09 AM

I have seen people using the RC to upgrade from, dont count on it working after the RC keys expire, aka next time you need to reformat.
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October 26, 2009 11:54:22 AM

If the the copy of RC is the same version your upgrading to then you can do the upgrade if not it's a clean install.
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a b $ Windows 7
October 26, 2009 3:13:36 PM

You won't have to format at all! The clean install will dump all of the data from your RC install into a folder called "C:\windows.old" (supposing your system partition letter is C), and then install the final version of Win7. So no need to format; the old files will be swept away into a corner, so to speak, by the installer.
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a b $ Windows 7
October 26, 2009 5:25:09 PM

Emphasis on the response from baddad, the RC is Ultimate so that is the version of upgrade you will need.
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a b $ Windows 7
October 26, 2009 5:55:29 PM

Jonmor68 said:
Emphasis on the response from baddad, the RC is Ultimate so that is the version of upgrade you will need.

I don't think that's true. It requires a clean install, but at least going from Vista you can "upgrade" to a lower version. It just requires a clean install, which the RC requires anyway.
I don't think it really matters, though. The RC license qualifies you to use an Upgrade version of Windows 7, and you can install the Upgrade version no matter what's already on the HDD, even if that's nothing.
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October 26, 2009 6:00:21 PM

I just went through the Windows 7 RC to Win 7 Home Premium deal myself. Although I went from a Raid 0 Config to a single drive configuration, so I formatted myself.

If you have multiple hard drives installed, DISCONNECT all of them except the one you want to install on. Just trust me. ;)  I just got done using data recovery software last night to recover 189GB of videos and photos and other stuff.

If you have Win 7 RC installed (Which is Ultimate) the new Upgrade (if it isn't Ultimate) will require a "clean install". However, this is not a complete format. It will however, compact all your current data on the drive into one folder called "Windows.OLD" Then it will act as if it's performing an entirely fresh install of Windows 7 on your hard drive.

So it's not really an "upgrade" from the RC. Once you put the disk in the drive you'll see what I'm talking about. It normally will give you two options. 1) Upgrade in place or 2) "Clean Install".

Keep in mind, without using some kind of work around, the Win 7 Upgrade disks WILL NOT "Clean Install" on a formatted drive. It will claim your CD-Key is invalid. So you're best to already have Vista, XP, or Win 7 RC installed before you start so it works smoothly.
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