What is this error?

I get an error when I try to start BF3.
I upgraded the direct x,but didn't worked.
When I updated my video drivers a month ago,I got an error lie:"Packaged failed to install"
I downgraded and same error.
I read that it might be from the OS.
Thanks.

Sounds like your failed upgrade of the graphics drivers is screwing this up. You might want to try downloading and installing them again.

sites.amd.com/us/game/downloads/Pages/radeon_win7-64.aspx

Till the 11.10 comes out next week, the recommended driver for BF3 at the moment is the Preview 3,

http://www.sevenforums.com/graphic-cards/1810-latest-amd-catalyst-video-driver-windows-7-a.html

You posted this question in another area, and your responses there are probably correct. The video card may not be supported, likely causing you to need an upgrade. As mentioned, as well, even if you got the game to run, it wouldn't be playable on a 2400.