In SQL Server Management Studio Object Explorer - How to increase Font Size?
From the tool --> Options --> Fonts & Colors we can change fonts for many windows. T
In SSMS-17, Once you have navigated to Tools->Options->Environment->Fonts and Colors, Select Environment Font from the Show settings for. Then the Font will need to be set to a different Font before the Size of the text can be changed. The Automatic default Font setting prevents the Size from being changed.
Snip: SSMS-17 Before changes are made
Snip: SSMS-17 After changes are made