How to clean Install from Windows 7 Upgrade Media 
                 
Print Preview
The retail upgrade media is bootable and can perform a clean install but it won’t activate with the
upgrade key unless you perform one of the methods below.
METHOD 1:
Double Install Trick:
1. Boot from the DVD, choose “Custom (Advanced)”, do not enter the key at this time.
2. After it has installed, boot into it, you will have 30 days to activate it will inform you.
3. Place the DVD back in and launch setup again and choose “Upgrade” this time, it will install over itself.
4. After it’s installed for the second time, the upgrade key will now be accepted and will activate.
Tag: Double Install Trick, Upgrade Media, Windows Activation,
METHOD 2:
Use SLMGR Commands to Insert Product Key and Activate:
- Open an elevated command prompt as administrator.
- Use the following command to install product key:
slmgr -ipk <upgrade product key>
- Activate Windows 7 with the following command:
slmgr -ato

To check acti vation status from command line, use slmgr -dlv or slmgr -dli.
METHOD 3:
Clean Install and Activate Windows 7 with MediaBootInstall Registry Hack:
- After booting up, ensure that no Windows Updates pending task which requires a system reboot to finish installing.
- Run Registry Editor (RegEdit).
- Navigate to the following registry key:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Setup\OOBE
- In the right pane, change the value data for MediaBootInstall from 1 to 0.
- Open an elevated command prompt as administrator.
- Run the command below to reset Windows 7 activation status:
slmgr –rearm
- Reboot the computer.
- Run the Activate Windows utility (type Activate Windows into Start Search), type in the upgrade product key and activate Windows.
Leave a Reply