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Windows 7: Clean Install win 7 using upgrade disk

19 Jul 2013   #1

Windows 7 Home Premium 64-bit (upgrade disc)
Clean Install win 7 using upgrade disk

My computer has 2 hard drives and win 7 files currently live on 500GB c:\drive. I want to do a clean install from Win 7 home Premium 64-bit upgrade disk. However I would like the win 7 files to be installed on the 250GB e:\drive. Not sure how to do this without formatting both drives first.


My System SpecsSystem Spec
19 Jul 2013   #2
Microsoft MVP


Unplug the other HD to Clean Reinstall - Factory OEM Windows 7 to the target HD. Everything you need to get and keep a perfect install is in the blue link, including the latest official Installer.

If this is a reinstall of the licensed version which came with the PC use the Product Key on the COA sticker pictured in the tutorial. If it's an Upgrade version of an older OS and there's no OS on the target HD for the installer to see when booted to do the install, then leave the key blank during install and afterwards do the quick Option 3 workaround in Clean Install with a Upgrade Windows 7 Version

After install plug other HD back in to copy over your files, then delete the old Win7 partition in Disk Mgmt after Marking Partition Inactive, or wipe the HD to get it cleanest with Diskpart Clean Command
My System SpecsSystem Spec
19 Jul 2013   #3

Windows 7 Home Premium 64-bit (upgrade disc)

Great! Thanks for the help. I will give it a shot once I backup all the data I need to keep.
My System SpecsSystem Spec


 Clean Install win 7 using upgrade disk

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