Thanks to John McBride for helping me with this.
1. In SQL Management Studio, make sure you are connected to ‘master’ in the available databases drop-down box.
2. Click ‘New Query’ to open a query window.
3. Get the logfile name by:
a. Right-click the database
b. Select Properties
c. Click Files
d. Note the name of the log file.
4. Type the following in the query window:
Use <YOUR_DB_NAME>
Go
backup log <YOUR_DB_NAME> with truncate_only
go
dbcc shrinkfile(<YOUR_DB_LOGFILE_NAME,1)
go5. Click the Execute button.