We need dxdiag and files from this folder to solve your problem. C:\Users\<Name>\AppData\Local\Arma 3 Alpha\

Can you upload it somewhere in winrar package please?
If package is smaller than 5,000k, so you can attach it here. Thank you.

(In case of random crashes, please install latest graphic and sound drivers. Usage of driver cleaner before installing new drivers will make sure you have no corrupted drivers left on your computer.)

Ticket closed due to lack of information. If the issue is still valid, please create a new ticket and add the required files (DxDiag, .rpt, .bidmp and .mdmp) as per the how-to-guide. (Red button, top right corner.)