COD4 Key Code in invalid. Need Help

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Ryan Van Der Meulen

Honorable
Jul 25, 2013
8
0
10,510
hey everyone, so i got a new pc and i was transfering my games to this pc. and one of those was cod4. i put it on a hard drive and moved it. it worked for atleast 3 weeks perfect. no problems. then randomly it says my keycode is invalid, please go to mulitplayer options and enter keycode. so i do. and it gives me the same message. i have the retail version of the game. not cracked. someone please help as i cant find anything on it. THANK YOU
 
Solution
Mind Games
The issue you are running into is that your Key is being validated within the game's files but not within your system's registry. To further explain, when you transferred the already installed files from one hard drive to another, you were taking a shell of the game. The game lost the registry data once transferred since it existed on that drive it was originally installed on. To fix: if you purchased through steam, re-validate local files. If you have a disk, re-install it. If you have a CD-Key but no disc, download the full game and use your CD.

Try this first
If none of the above fix it

**If you change the wrong thing in the registry you could break a lot of programs.**


Open Regedit and look in this folder...
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Ryan Van Der Meulen

Honorable
Jul 25, 2013
8
0
10,510
ok i fixed it. for anyone having the same troubles as me here you go. go to your old pc. open Run. search regedit. then select HKEY_LOCAL_MACHINE. go down to Software and then down to wow6432node. then go to your activision folder and then to your cod4. right click on your COD4 folder and export it to a flash drive. then from there go to your new pc. put your flashdrive in and go back into regedit. then up in the top left hand corner click File, then import. from there you go to your flash drive and select the reg folder from your old pc and import. solved. works normal now
 
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Mind Games

Mind Games

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Apr 3, 2013
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18,760
The issue you are running into is that your Key is being validated within the game's files but not within your system's registry. To further explain, when you transferred the already installed files from one hard drive to another, you were taking a shell of the game. The game lost the registry data once transferred since it existed on that drive it was originally installed on. To fix: if you purchased through steam, re-validate local files. If you have a disk, re-install it. If you have a CD-Key but no disc, download the full game and use your CD.

Try this first
If none of the above fix it

**If you change the wrong thing in the registry you could break a lot of programs.**


Open Regedit and look in this folder
http://i.imgur.com/UlLzrHE.png

HKEY_CURRENT_USER\Software\Valve\Steam\Users\*stri ng of numbers*\cdkeys\

Look for the name "7940" on the right. Right click on it, click on modify then copy the value data. That should be your cdkey for the game with appid of 7940 (which is COD4).
If there is no entry for this then you probably do not have it through steam.

I hope this helped.
- Mind
 
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