Windows 7 upgrade kit clean install

http://community.winsupersite.com/blogs/paul/archive/2009/10/23/clean-install-windows-7-with-upgrade-media-the-answer.aspx

뭐 이렇게 퍼다 나르는 게 좋은 것은 아니지만 글들이 삭제가 되더라고요...
혹시나 해서 일단 퍼다 놓습니다.. 원본은 위의 링크에

Clean Install Windows 7 with Upgrade Media: The Answer

I was so hoping to have better news to share, but with all the conflicting reports and my own troubles testing this while on the road, it's been a messy 24 hours. However, after staying up late last night and working through a few different scenarios, I think I do have a (fairly) simple way to clean install Windows 7 with Upgrade media. That is, it should be easier than the old "install it twice" hack that I previously documented for Vista (though that should still work as well).

Put simply, the goal here is to clean install Windows 7 on a virgin, unused PC. You can boot and run Setup with the Upgrade media for Windows 7, but when you go to activate, it won't work.

Thanks to Kevin Fisher and a bit of testing, I have a simple workaround that does work.

After performing the clean install, ensure that there are no Windows Updates pending that would require a system reboot. (You'll see an orange shield icon next to Shutdown in the Start Menu if this is the case).

Then, open regedit.exe with Start Menu Search and navigate to:

HKLM/Software/Microsoft/Windows/CurrentVersion/Setup/OOBE/

Change MediaBootInstall from "1" to "0".
*MediaBootInstall이 1일 경우 Clean 설치로 인식을 하고 MediaBootInstall이 0일경우 업그레이드로 인식을 하는 듯 합니다. 업그레이드용을 구입하셨으면 CD-KEY가 업그레이드용일테니 MediaBootInstall이 1로 되어 있으면 CD-KEY가 안 먹을겁니다. MediaBootInstall을 0으로 해 주면 업그레이드용 CD-KEY가 먹습니다. 이 부분은 필수 !!

Open the Start Menu again and type cmd to display a shortcut to the Command Line utility. Right-click this shortcut and choose "Run as administrator." Handle the UAC prompt.

In the command line window, type: slmgr /rearm
*slmgr /rearm은 정식 등록 없이 윈도우 사용시간을 30일 더 늘려주는 명령어입니다. 구지 안 해도 상관 없습니다.

Then tap ENTER, close the command line window and reboot. When Windows 7 reboots, run the Activate Windows utility, type in your product key and activate windows.
*내 컴퓨터 오른쪽 클릭 하시면 정품 인증을 할 수 있는 메뉴가 있습니다.

Voila!

A couple of notes here.

Others have reported that simply installing Windows 7 using Upgrade Media and then activating just works. It certainly doesn't hurt to try this, but my guess is that there was a version of Windows on the hard drive that Setup detected, thus making the install and activation work properly.

I have not tested this yet, but I assume if you launch Setup from within your previous version of Windows, choose Custom, reboot, and then wipe out the previous Windows version during Setup, that that will work as well.

And I'm just about positive that the old "install twice" hack from Vista will work too.

I will test all of this thoroughly when I get home. But for now I wanted to cut through the baloney and cut and paste jobs out there and give you something that really does work.

Again, thanks very much to Kevin for this information.