please help me

[Xguardianx Xangelx]

my system is as follow but i cant make any assassins creed work on it , i have tried assassins creed 1 , 2 , 3 , brotherhood , revelation , but non of them work on my system it says AC.. has stopped working. please help me with this problem , all my other games are working very good.

operating system Windows 7 ultimate 64-bit
processor I7-4770K
memory Corsair Dominator Platinum 16GB
graphic card Nvidia GTX 780 TI
motherboard Asus Maximus VI HERO
hard drive SSD

 

[mouse24]

Up to date windows/drivers/legit windows and AC copies?

 

[Onus]

What is the brand and model (not just wattage) of your PSU?
Have you run memtest86+ on your RAM (may need to test each stick by itself) ?
Do you have the latest drivers installed, particularly for your sound?

 

[vrumor]

Where did you download AC from?

 

[rgd1101]

duplicate post, the other one said he/she pirated the games.