https://docs.microsoft.com/en-us/sql/ssms/download-sql-server-management-studio-ssms?view=sql-server-2014&viewFallbackFrom=sql-server-2014

Giving versions: Microsoft SQL Server Management Studio 14.0.17277.0 (17.8.1) and Microsoft Data Access Components (MDAC) 6.1.7601.17514

https://docs.microsoft.com/en-us/powershell/scripting/setup/installing-windows-powershell?view=powershell-6

https://github.com/yochananrachamim/AzureSQL/blob/master/MasterKeyIssue/RemoveMasterKeyGT4GB.ps1

https://github.com/yochananrachamim/AzureSQL/blob/master/MasterKeyIssue/RemoveMasterKeyLT4GB.ps1

Ps Set-executionpolicy unrestricted

https://www.mssqltips.com/sqlservertip/2702/setting-the-powershell-execution-policy/

Open a command prompt in

C:\Program Files\Microsoft SQL Server\140\DAC\

run

sqlpackage.exe /Action:Export /ssn:**url**.database.windows.net /su:**user** /sp:**Pasword**. /sdn:**databasename** /tf:"B:\backupfolder\backupfilename.bacpac" /p:Storage=File

run at the PS command prompt:

Ps  c:\YourChosenPowerShellScriptFolder\RemoveMasterKey.ps1 -bacpacPath "B\backupfolder\backupfilename.bacpac.bacpac"

After some time you should get

Completed update to the model.xml and Origin.xml in file B\backupfolder\backupfilename-patched.bacpac

Open a command prompt in

C:\Program Files\Microsoft SQL Server\140\DAC\ and run

sqlpackage.exe /Action:Import /tsn:.\serverInstance  /tdn:NewDatabaseName   /sf:" \backupfolder\backupfilename"  /p:Storage=File