It happened with me where the database log file was of 28 GBs.
What can you do to reduce this? Actually, log files are those file data which the SQL server keeps when an transaction has taken place. For a transaction to process SQL server allocates pages for the same. But after the completion of the transaction, these are not released suddenly hoping that there may be a transaction coming like the same one. This holds up the space.
Step 1: First Run this command in the database query explored checkpoint
Step 2: Right click on the database Task> Back upSelect back up type as Transaction LogAdd a destination address and file name to keep the backup data (.bak)
Repeat this step again and at this time give another file name
Step 3:Now go to the database Right-click on the database
Tasks> Shrinks> Files Choose File type as LogShrink action as release unused space
Step 4:
Check your log file normally in SQL 2014 this can be found at
C:\Program Files\Microsoft SQL Server\MSSQL12.MSSQL2014EXPRESS\MSSQL\DATA
In my case, its reduced from 28 GB to 1 MB