Cannot download Battlefield 3 on windows 7 home

Since you don't specifi what you have tried i'll post this generel answer.

Credit goes to Carbonic

Post better:
- Please write descriptive (also the subject line) so the right people find your question and knows what it contain
- Have it worked before? When did it start not working and what did you do just before that?
- Post relevant log files, screenshots, descriptions, exact error messages, and all other relevant information(like platform) - even if it's stupid and obvious (there's a lot of clueless people on the internet ;-) )
-Tell what you have tried and how you did it and what the results are, in DETAIL

Check for current outages and bugs:
- Check the Battlefield server status: ( http://www.ea.com/servers/battlefield3 )
- Check the Origin server status: http://www.origin.com/us/status
- Check News and Official Announcements on Battlelog for outages and current problems

Common questions:
- Banned? Read this: ( https://help.ea.com/in/article/information-about-banned-or-suspended-accounts )
- Veteran status / M1911 pistol / Gun Club: The Gun Club is gone and now requires a veteran status to obtain, this is gained from playing other Battlefield games. Play4Free, Heroes and 1942 is free to download and play and each give a veteran rank. Other games can be registrered at http://www.battlefieldbadcompany2.com/veteran. If that doesn't work contact EA support.
- How to contact EA? Go to https://help.ea.com/contact-us . Fill in keywords then product, category and platform. Press 'Find Solutions' --> 'I Still Need Help'. Contact options will appear. If live chat/phone does not appear, it might be closed in your area at the moment and you might consider changing it to: 'United States' or something else in the language selector in the bottom of the site.
- Can't access DLC/Premium? To find and handle your DLC right-click your game in Origin and click 'show game details' and scroll down to 'expansions'

Common mistakes:
- Can't find your game? Make sure you have bought BF3: Premium Edition and not just Premium.
- EA ANSWER ME!! Answers HQ is a place where users help fellow users, not a place where you can contact EA.

Things you should always try:
- Try restarting your computer and network equipment (routers, switches etc.)
- Try another browser (Chrome/FireFox/IE)
- Try repairing your game in Origin (right click --> repair)
- Try reloading your games in Origin by pressing "Reload My Games"
- Check if Punkbuster is running correctly and update it manually ( https://help.ea.com/in/article/punkbuster-technical-issues )
- Try setting bf3.exe and Origin as a trusted application in the windows(/other) firewall
- Update ALL your drivers especially the graphics card but also components like soundcards, network card, motherboard/chipset, headset and mouse+keyboard, to the newest version, if the problem came with a new driver then remove that driver and downgrade to the driver that worked.
- Try testing if the problem is still there if you perform a clean boot ( http://support.microsoft.com/kb/929135 )
- Look for the problem in the pinned threads like - Check the READ FIRST post http://answers.ea.com/t5/Battlefield-3/READ-FIRST-Known-issues-guides-and-FAQs/m-p/215092/highlight/... and http://answers.ea.com/t5/Battlefield-3/Battlefield-3-fixes-guide-read-carefully/td-p/76264

Troubleshooting:
- Try flushdns to flush your dns cache ( http://www.wikihow.com/Flush-DNS )
- Make sure Origin doesn't have connection issues ( https://help.ea.com/article/connection-issues-with-origin )
- Make sure the correct ports for BF3 is open ( https://help.ea.com/article/online-ports-for-battlefield-3 )
- Try cleaning your browsers' cache and temporary files using CCleaner ( http://www.piriform.com/ccleaner )
- Try reinstalling Origin by manually uninstalling first ( https://help.ea.com/article/manually-uninstalling-origin ) + make sure it's the newest version
- Try reinstalling the game by manually uninstalling first ( https://help.ea.com/article/How-to-manually-uninstall-Battlefield-3 )
- If you have a Realtek soundcard try disabling it in the BIOS
- Try deleting the BF3 Settings folder in C:/Users/USERNAME/My Documents/Battlefield 3
- Try doing a UOtrace to EA's servers to check for problems - https://help.ea.com/article/how-to-uo-trace
- DirectX error? Try reinstalling DirectX ( http://pcsupport.about.com/od/fixtheproblem/ht/directx9xp.htm )
- Use Windows Eventviewer to look at the error in xml and copy/paste the solution here
- Run Origin and Battlefield 3 as administrator ( http://technet.microsoft.com/en-us/magazine/ff431742.aspx )
- Go to the cloud button on BF3 and uncheck the “enable cloud storage for all games” box. Launch the game, quit it and re-enable the cloud storage box. Make sure to use the local data when the information box popping up.