Q: Windows 7 upgrade install on new hard drive. This thread is locked from future replies

I upgraded from Vista Ultimate to Windows 7 Home Premium last year (download w/ backup DVD). My hard drive crashed a month ago and without thinking, I did a clean install of Windows 7 on the new hard drive. Of course it wouldnt let me activate it since my product key is for upgrade only. So I reinstalled Vista and tried to use my Windows 7 install disc to upgrade. I keep getting a message that says I cant upgrade from Vista Ultimate to 7 Home premium and it wants me to do a clean install. If I do this, Im affraid it wont take my product key again. What should I do???



Do Clean Install with the Upgrade Media:

Do a keyless installation when prompted

At the enter your product key page, do a keyless installation (do not enter a key).
Once you have reached the desktop, click Start, type: CMD
Right click CMD, click ‘Run as administrator’
At the command prompt, type, regedit
Go to HKEY_LOCAL_MACHINE/Software/Microsoft/Windows/CurrentVersionsetup/OOBE/mediabootinstall
changed its value to 0
Go back to the Command Prompt, type the following:
slmgr /rearm
Restart the pc and use the activate windows to re-enter your product key

Then use phone activation to activate the software:

How to activate Windows 7 manually
1) Click Start, and in the Search box type:   slui.exe  4
2) Next press the 'ENTER' key
3) Select your 'Country' from the list.
4) Choose the 'Phone Activation' option.
5) Stay on the phone and wait for a person to help you with activation.

Andre Da Costa | | Microsoft MVP
Windows Insider MVP
MVP-Windows and Devices for IT

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Views: 535 Last updated: November 27, 2017 Applies to: