I'm upgrading my microsd card from a 1gb to a 2gb. Can I just copy all the files from the old one to the new one? or do I have to reinstall all the apps?
Plug it into your card reader, tell windows to show you hidden files.
Copy everything into a folder.
Eject the old card. Insert the new one.
Copy everything onto the new card.
Eject card and put into phone.