Support & Learning

Here are some possible reasons.

1)Check if you have logged in UniConverter software.

After purchase, you can try to re-login or restart the software to refresh your account status.

2)Check your current subscription period and applicable operating system（Mac or Win）. If your subscription has expired or the operating system does not match, it will display as unauthorized. 

3)Please kindly note that the perpetual license authorizes you lifetime access to only the major version that has been purchased and you can get minor updates for free within this major version. But it does not include new major upgrades. For example, you can get an upgrade from Uniconverter 15.0 to 15.2 for free but an upgrade from Uniconverter 15.0 to 16.0 require a payment. 

If you bought an old perpetual license for Uniconverter 14/15 before 08/01/2024, that license won't activate the Uniconverter 16 without your paying for the upgrade.

UniConverter 16 is a brand new product with more features and a better experience. Now is a good time to get the new product with special offers exclusive to our existing users. Actually, it does not conflict with the older version you have, and you still have access to the previous version whether or not you upgrade.

We highly welcome you to visit our upgrade page for more details:

https://videoconverter.wondershare.net/upgade-uniconverter-with-discount-16.html