Are you using Windows 8?
If so, it's Most likely the issue is there because you are running on Windows 8 , try to run Origin in the windows 8 compatibility mode(As XP SP3 or Vista SP2) by right clicking on the origin icon
here is a link in case you what to know how to do that
Here is a link which other's had that issue as well, read through those:
Getting Error 262145:5 when installing Battlefield 3 - Answer HQ
and another here Battlefield 3 Error 262145:5 - Battlelog - Battlefield
Good Luck 🙂
✔ Please don't forget to resolve your question if this helps and Click XP if someone helped! 🙂
