Windows8

Activation fails after clean install from upgrade cd and "MediaBootInstall" + "slmgr /rearm" don't seem to work

make sure you had Admin rights while executing "regedit" and "cmd":

use "search" from the right side menue
search "regedit"
rightclick in the found "regedit.exe"
choose "execute as admin" from the blue bar at bottom
goto "HKEY_LOCAL_MACHINE/Software/Microsoft/Windows/CurrentVersion/Setup/OOBE/MediaBootInstall"
set value to "0"
close regedit
repeat steps 1-4 with "cmd" instead of "regedit"
type "slmgr /rearm" (Enter)
wait for the success message

try to activate: If it fails and you get "something wrong with your product key", compare the last part of the product key shown in that app with your key card.
If keys are different:
- What happened? Microsoft changes the registered keys with some updates and upgrades (esp. "MediaCenter"). So your key is "invalid".
- Solution: Change the key back to your key (http://support.microsoft.com/kb/2750773/en)

repeat steps 1-4 with "slui.exe 0x3"
go back to activation and type in your product key
done

(Another way is decribed under the link above.

German speakers should read -

http://stadt-bremerhaven.de/windows-8-upgrade-clean-install-funktioniert/

http://support.microsoft.com/kb/2750773/de)

Google Sites

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