![Fix Cannot open user default database. Login failed. Login failed for user SQL Server Error - MyTechMantra.com Fix Cannot open user default database. Login failed. Login failed for user SQL Server Error - MyTechMantra.com](http://dev.mytechmantra.com/wp-content/uploads/2019/07/SQL-Server-Login-Properties-Default-Database-Name-is-Missing.png)
Fix Cannot open user default database. Login failed. Login failed for user SQL Server Error - MyTechMantra.com
![SQL SERVER - Fix : Error: 4064 - Cannot open user default database. Login failed. Login failed for user - SQL Authority with Pinal Dave SQL SERVER - Fix : Error: 4064 - Cannot open user default database. Login failed. Login failed for user - SQL Authority with Pinal Dave](https://blog.sqlauthority.com/i/b/error4064.jpg)
SQL SERVER - Fix : Error: 4064 - Cannot open user default database. Login failed. Login failed for user - SQL Authority with Pinal Dave
![SQL SERVER - Fix : Error: 4064 - Cannot open user default database. Login failed. Login failed for user - SQL Authority with Pinal Dave SQL SERVER - Fix : Error: 4064 - Cannot open user default database. Login failed. Login failed for user - SQL Authority with Pinal Dave](https://blog.sqlauthority.com/i/b/error4064_1.jpg)
SQL SERVER - Fix : Error: 4064 - Cannot open user default database. Login failed. Login failed for user - SQL Authority with Pinal Dave
![Fix Cannot open user default database. Login failed. Login failed for user SQL Server Error - MyTechMantra.com Fix Cannot open user default database. Login failed. Login failed for user SQL Server Error - MyTechMantra.com](http://dev.mytechmantra.com/wp-content/uploads/2019/07/In-SSMS-Connection-Properties-Specify-Default-Database-as-TempDB-and-Click-Connect.png)