If you have one license, then the upgrade DVD product key is valid to
activate Windows 7 (during the upgrade process or after) for one machine as
long as the license is not in use elsewhere.
Each additional product key provides one additional license which can be
used to activate another Windows 7 the same way as above.
Activation, if previously done before with the same product key (if online
activation fails) usually requires a phone call to MSFT to activate Windows
(via info provided by an automated response during the phone call or a voice
conversation with a MSFT representative).
Windows 7 media can be used for numerous installations - a separate product
key is necessary to activate each installation.
--
....winston
msft mvp consumer apps
"Ken1943" wrote in message
Tried to Google without luck. Seems like the upgrade dvd can only be
activated once. This was on a clean install. I got 3 upgrades here and
guess I'm out of luck.
Can anyone confirm this.
KenW