Cant start ARMA

[Zazueta]

ARMA will not start it says
Error Missing file privileges

 

[1st Lt (Ret) Hardman]

Is this before or after installing the unit mod set?

 

[1LT (Ret) Burke]

Try following the steps posted here: https://steamcommunity.com/discussions/forum/1/1458455461474727488/

Seems to be a fairly common problem not specific to Arma 3.

 

[Zazueta]

Thank you very much your solution fixed my problem