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Windows 7: deactivate windows 7 in order to reinstall on another PC

15 Jun 2011   #11

Windows 7 x64 pro/ Windows 7 x86 Pro/ XP SP3 x86

Quote   Quote: Originally Posted by Bare Foot Kid View Post
Quote   Quote: Originally Posted by bobkn View Post
Quote   Quote: Originally Posted by alphanumeric View Post
Correct me if I'm wrong, but this deactivates Win7 on the local machine. It does not reset the Microsoft activation server and free up the license key. There's not much point in doing this.
Quote   Quote: Originally Posted by Bare Foot Kid View Post
Hello whyld4900, welcome to Seven Forums!

The way to deactivate an activation key is to type slmgr -upk into an elevated command window, have a look at the snip below, be sure that you don't do it until you are ready as it will make Windows non-genuine at the next reboot.
click to enlarge
Attachment 159663
Edit: Now I see the tutorial was posted above.
It must free up the key at the servers if it does this.
No, whats probably happening here is that the -upk switch uninstalls the currently installed product key and the license status reverts to trial. Now the trial is valid only for 30 days (extendable to 120 with rearm) which period has presumably already expired on said computer.

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 deactivate windows 7 in order to reinstall on another PC

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