Workarounds for unknown errors when updating and downloading software using Mac App Store

Many fans may have been plagued by "unknown errors" when using Mac App Store to update/download software, and how to solve them. However, after some time do not know what to do and self-good. Today we offer two ways to solve this problem and you can try it out the next time you encounter this problem.

1. First confirm that the same Apple ID account is logged in the Mac App Store and ITunes. Some fans may have two or more Apple IDs, such as family and friends, a Chinese account, a U.S.-area account, and so on. If ITunes and Mac App Store aren't signed in to the same Apple ID, there's a good chance of an "unknown error" issue.

2. After logging in with the same account, exit the Mac App Store and itunes (if itunes is running).

3, re-run the Mac App Store, many times you can solve.

If it still doesn't work, it's possible that Apple has updated the ITunes terms of use and you haven't agreed to the new terms. If this is the reason to solve it is very simple:

1. Run ITunes (if it is a running state, then exit and restart);

2. Accept the new iTunes terms of use;

3. Restart the Mac App Store.

Workarounds for unknown errors when updating and downloading software using Mac App Store