只需删除origin临时文件就可以了，方法如下（后附原文）
1.关闭origin
2.在系统盘内删除Origin这个文件夹
Win7在
C:\ProgramData\
XP 在
C:\Documents and Settings\All Users\Application data\Electronic Arts\.
C:\Users\%USERNAME%\AppData\Local\
C:\Users\%USERNAME%\AppData\Roaming\
（因为origin属于隐藏文件，如果你没找到请看这里http://windows点microsoft点com/en-ie/windows/show-hidden-files#show-hidden-files=windows-7）
3.重新启动origin后运行DAI，origin会重新验证DAI
验证完后就可以正常更新游戏了。
此方法不仅仅可以解决无法更新问题，还可以解决无法下载游戏，内购内容无法下载等问题。
原文：
Clearing your cache, or your Origin client temporary files, can sometimes help fix downloading or installation issues, like in cases where your game has downloaded partially but then become corrupted, or if there are folder permission issues blocking incoming data.
If you've purchased a game or in-game content and it's not showing up in Origin, or if a game is in your My Games list but doesn't launch correctly, clearing your cache might just do the trick.If you're on a Windows computer:
Make sure your Origin client is completely closed.
Do this by clicking Origin in the menu bar then selecting Exit.
Head to your C: drive by clicking the Start or Window button on your desktop and selectingMy Computer.
Find and delete the "Origin" folders found in each of the following:
These folders are hidden by default, so you'll need to un-hide them by Showing Hidden Files to be able to delete them.
Open each folder by finding then double-clicking it.
C:\ProgramData\
On Windows XP, the ProgramData folder is located in C:\Documents and Settings\All Users\Application data\Electronic Arts\.
C:\Users\%USERNAME%\AppData\Local\
C:\Users\%USERNAME%\AppData\Roaming\
Empty your Recycle Bin and you're done.