ERROR Could not launch game. Please make sure it's installed correctly.

I'm having the exact same problem as OP, but i can't repair the game, as it just says "Could not download game, please check your internet connection and try later" Well, my internet works just fine, as intended. speeds 20down/10up.

i have the same problem tried the repair still the same error

Having the same problem, repairing didnt help.. hoping its because of the origin thing..

Strange issue you guys have if repair game fails to help then try this...

Run Origin as Administrator:
Go to C:\Program Files (x86)\Origin and right click on Origin.exe and go to properties. Then go to compatibility tab and check the box next to RUN AS ADMIN.

Disable Origin in game:
In Origin - Application settings - Origin in Game - disable Origin in game

Origin Cloud Storage turn it off
Origin, settings, General

Reboot PC then try again

If this fails to fix it then try this....

Please update your Origin client to the latest Beta version (top left Origin menu, Application Settings - General) Then reboot PC and try again.

OR

Re- install origin only not your game just origin.

1. Uninstall Origin completely from Windows Control Panel.
2. Reboot your PC. This is important to clear out any lingering registry files or directories.
3. Download the latest Origin here: http://origin.com/download
4. Install Origin and see if you can install your game.

Or try using another browser to lauch battlelog. 

Switching to IE 11 worked for me. And then wait it out until the plugin of your standard browser gets fixed.

Hope I could help. 

You can go back ot your old browser woked for me, just needed new plugin install from another browser.. witch is freakinn weird..

Hello all, I've win 7 and AMD gpu, no changes im my setup and the same problem. "Could not launch game. Please make sure it's installed correctly."
It's shure that the game doesn't try to connect himself, the message appeare directly.

remove battlelog plugin in programs and features then reinstall seems to have worked for me

If anyone still needs this  covers all browsers ....

Guide to reinstall the Battlelog plugin : By Red_Spider
Please see this link ...

http://battlelog.battlefield.com/bf4/forum/threadview/2955065235409399339/