Is it possible to unregister the key and register it to another car - Opel Astra H

[Duracell2]

I bought online a new key for my Opel Astra H, 2005
I registered(added) it with OPCOM and it works fine.

My question is, is it possible to unregister the key from my car and register it to another one ?
If not, why not ?
Thank you all.

[newone]

your key is locked to your car,to use it in another must be virginized first,tools like mk3

[Duracell2]

mk3 costs 2000 $ :cower:

[kemaster]

Then change PCF with prepared like this one: http://www.codecard.lt/keys/opel/pcf7941-for-opel-astra-h-zafira-b-remote-key-repair/prod_2187.html
Or there are companies offering renew of your used one

[newone]

or buy a new a new one,not so expensive

[newone]

mk3 costs 2000 $ :cower:
mk3 1800$,gm activation 1000$,5 token x 1$ per use very cheap hahahahaha
new virgin chip precoded 22 euro,your key bought 25-30$ so i think better to buy a new one key,pay a little more and keep programmed one as a spare to your car