Due to a change in Microsoft security policy, the update to Audirvāna 3.5.51, from previous versions is special.
It requires, just for this time, a few actions from you to not lose the import of your tracks and playlists. So please follow the steps :
Make a copy of your database:
In the settings under the library section of Audirvana, click on the Change button.
Select where you want to copy your database (you can put it on your desktop for example).
Now that you saved it in a different folder BEFORE uninstalling 3.5 (It’s mandatory to not lose the import of your tracks and playlists)
Uninstall Audirvāna 3.5 from your computer: right-click on the icon in start menu and select Uninstall
Install the latest version of Audirvāna 3.5 using the link https://audirvana.com/delivery/AudirvanaWindows.php
Open 3.5 one time and close it. This will create an empty database that you will replace with the saved one.
Replace the AudirvanaPlusV2Database.sqlite file with the one you have saved in step 1:
The empty database can be located in two different locations :
C:\Users[your login]\AppData\Local\Packages\Audirvana.Audirvana-[… id number that can vary]\LocalCache\Local\Audirvana\Audirvana
to show AppData folder:
You can now reopen Audirvana 3.5 and listen to your music. Don’t worry, future updates will be easier.