ITunes signature is invalid - what to do?
The error that the signature of iTunes is invalid is relatively easy to fix. You can read how exactly in this practical tip.
You can do that if iTunes signature is invalid
If the signature of iTunes (Windows / Mac OS) is invalid, only a new installation will help:
- If you are currently running the program, close iTunes first.
- Remove iTunes from your PC or Mac. We explain in other instructions how to uninstall Mac programs or Windows programs.
- Then download and install iTunes again. Note: You can select your operating system under the information box on the right edge of the text.
- After the successful installation, the error should no longer occur.
- If the error is still displayed afterwards, we recommend that you wait for the next iTunes update.
This practical tip is based on iTunes 12 on Mac OSX. We will show you what you can do if iTunes no longer starts in our next practical tip.