Hi Rolandas2012
Greetings!
Thank you for posting in Microsoft Community. We are happy to help.
The method for making a contacts folder the default depends on the email client you are using. Here are instructions for outlook email clients:
Outlook
Open Outlook and click on the People tab.
In the Navigation Pane, click on the Contacts folder that you want to make the default.
Click on the File tab and then select Options.
In the Outlook Options dialog box, click on Contact.
In the When opening the Address Book, show this address list first section, select the name of the contacts folder that you want to make the default.
Click OK to save your changes. Check this thread for further guidance https://support.microsoft.com/en-au/office/change-default-address-book-53b3ce7a-9d35-4e27-9e37-57979778fe5b
https://support.microsoft.com/en-au/office/change-the-default-address-book-84c7be39-282a-4096-aeb8-89a2661a5162
Please kindly let me know if the possible solutions provided helps and if you need any other assistance, I will be more than happy to help further.
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