You should be able to install Windows 7 on a bare PC using the upgrade CD without any issue. That is, without having to first install an older version of Windows, and then upgrade. This arguably provides a cleaner install. However, a problem arises when you try to activate your Windows installation:
- Open Windows Activation by clicking the Start button, right-clicking Computer, clicking Properties, and then clicking Activate Windows now.
- If Windows detects an Internet connection, click Activate Windows online now. Administrator permission required. If you’re prompted for an administrator password, type the password.
- Type your Windows 7 product key when prompted, click Next, and then follow the instructions.
You should receive the activation error code 0xC004F061: “The Software Licensing Service determined that this specified product key can only be used for upgrade, not for clean installations.”
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To resolve this, you must edit the Windows registry. Open up the start menu and type “regedit” into the search field, followed by enter. Navigate to: HKEY_LOCAL_MACHINE/Software/Microsoft/Windows/CurrentVersion/Setup/OOBE/
(or click Edit then Find and type “MediaBootInstall” into the search field, and press enter). Once found, double-click MediaBootInstall
and change the “1
” to a “0
“. Click Ok and exit the Registry Editor.
Now you must “Re-Arm” the Windows activation sequence. First, you must open a command prompt as an administrator. To do this, open up the start menu and type “cmd” but instead of just pressing enter, you need to press “Ctrl” + “Shift” + “Enter” in order for it to run as an administrator. Alternatively, click the start menu, right-click on the command prompt application, and selecting Run as administrator.
From the command prompt, type “slmgr /rearm” and press enter. Then type “exit” and press enter. Then reboot.
Then activate Windows by performing the steps shown above again. This time it should work.
My System Configuration
- Windows 7 Professional x86 64-bit
References