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Level 1

5 points

10403 error not found

I am unable to update my MacOS high sierra to 10.13.6. I am getting an error 10403 not found. What does the error mean?

Posted on Oct 5, 2020 8:51 AM

Top-ranking reply

Level 10

245,393 points

Posted on Oct 5, 2020 9:28 AM

Are you usingFirefox?

Try reinstalling this in Safe Mode, but not using Firefox...

Safe Boot, (holding Shift key down at startup).

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