Windows performed some operating system updates and now POSitive is unable to connect to the SQL database.
To fix this issue:
1. Go to your Windows Start button and type "services".
2. Click the 'Services' application to open it.
3. Go to 'SQL Server...' ... it's likely not running although it is set to 'Automatic'.
4. Double-click 'SQL Server...' to edit its properties and change 'Automatic' to 'Automatic (Delayed Start)'.
5. Click 'Apply', then click 'Start', then click 'OK'.
You should now be able to run POSitive.