Unable to add premium activation key.

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I have re-installed YouTube Download Version 4.1.50.628 on my OS X 10.9.5 but it will not let me open YouTube Download - Preference or using Files-Activate premium membership to add the key. It locks up (freezes), and I am unable to do the other thing. Can anyone help?

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No avatar answered by (329k points)

When it comes to Mac OSX, things tend to complicate themselves without even doing nothing. Try to apply all the available updates for your OSX installation, then retry the procedure, because it's possible that version 10.9.5 might not be supported by the latest release of YouTube Download.

If it still doesn't work, use the contact details from the official website and forward this inquiry to the developers. You can reach the support page through the FAQ section.

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