I just changed my apple ID name.
However, I found some difficulties in applying the new ID in my devices.
The situation is like this:
1. I can not find how to change the apple ID on my air. When there are updates available, I was asked to enter my password.
However, the apple iD was the old one. I do not know how to change it.
2. After changing the apple ID, I heard that all the softwares need to be re installed because they belong to the old ID.
Is that true and is there any ways to avoid this.
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