Bobcat26 0 Posted February 26, 2013 I had this installed on my XP no problem. I just reinstalled to my new PC with windows 7 and I need to authenticate the game through secureRom. There was never a serial number given with the disk so how can I authenticate ? where is the serial number its asking for ? yes I read through the sticky above and tried this fix that didn't help I do not have the option for only user on step 8# , I only have users-pc-users or administrator-pc-administrator Thanks 1, Run REGEDIT 2, Expand HKEY_LOCAL_MACHINE 3, Expand Software 4, Expand Wow6432Node 5, Expand Bohemia Interactive Studio Not Bohemia Interactive 6, Click ArmA 2 OA, If you only see 1 file named "(Default)" And type REG_SZ then, 7, Right click the ArmA 2 OA file and go to Permissions 8, Left click YOUR USER, NOT! Users 9, After selecting your user click on Advanced 10, Yet Again click on your username for your pc and click on edit 11, In the drop down menu select This Key and Subkeys 12, You will see allow and deny make sure all allow boxes are ticked then click ok 13, you will be taken back one Dialogue box, Click Apply and OK and the same again on the next dialogue box. 14, Now you should see 4 files sat in your ArmA 2 OA folder, Names, "(Default)" "Data" "Key" & "main" 15, Now play your game hassle free Share this post Link to post Share on other sites
tonygrunt 10 Posted February 26, 2013 There was never a serial number given with the disk so how can I authenticate ?where is the serial number its asking for ? Of course there is a serial. Did you check the manual ? If the game came without a serial how would you be able play MP, and what about DRM? Share this post Link to post Share on other sites
Bobcat26 0 Posted February 26, 2013 you must be referring to the installation key , its asking for a serial number not the installation key. correct ? Share this post Link to post Share on other sites
W0lle 1052 Posted February 26, 2013 Installation key, serial number, cd key, activation key - all one and the same thing, just called differently. And if I were you I would fix my signature which is way over the allowed 600x150 px ;) Share this post Link to post Share on other sites
tonygrunt 10 Posted February 26, 2013 My disk version came only with one serial. Input the serial to all prompts. Share this post Link to post Share on other sites
Bobcat26 0 Posted February 27, 2013 I guess I should have tried the install key before posting. thanks for the help. Wolle , sig fixed ~S~ Share this post Link to post Share on other sites