Install apps from SD card

To install apps and games from your phone's SD card
1. Insert an SD card that contains one or more .XAP files into your phone.
2. In the App list, tap Store

.
3. Tap More, then tap Install local apps. (If you're running an earlier version of Windows Phone, look for the SD cardoption instead.)
Note :
If you've just inserted the SD card or added the .XAP files, you might need to wait a few minutes before you can access your SD card from the Store.
4. Select the apps you want, then tap Install.
5. Installed apps appear in the App list. Depending on the specific app or game, you'll be able to use them as follows:
*.Free apps and games can be used immediately.
*.Paid apps and games that have a trial will be available as a trial version that you can purchase later.
*.Paid apps and games without a trial must be purchased before you can use them.