Get error code 0x80070002 when try to install apps from Windows 8 app store

I had this problem and I searched and searched for a fix. What finally worked for me was creating a new account, not using the account that the store set up.

1. Make a new accont with a different email address and
2.  then move all the information you have from your first account to the new account.
3. Then delete the first account and create another account with the first email.
4. Once you do that move all the programs and files back into that account and delete the account with the different email address.

This is what worked for me. It was very involved but doing it this way doesn't reset your desktop settings and such. You might want to search for the exact fix I described above because I did it back in February and I'm not sure I related all the steps correctly.