How do I find my half-life CD key in the registry??`

[krazykilroy]

I have had this in the system forever, and now when I want to wipe my hard drive clean, I can't find my CD key info. how do I get it out of the registry???

 

[SilverTorch]

go to Start, Run and type in regedit. go toHKEY_LOCAL_MACHINE, SOFTWARE, VALVE, HALF LIFE then in the Key DWord value is your CD Key