If you’re receiving backup copies of client databases, to do customizations or migrations on, and they haven’t been truncating their transaction logs, it’s not unusual for a restored database to have a 3 GB .log file attached to it.
Those can fill up the space on a VPC very quickly.
To shrink them down to size, right-click on the database in SSMS, and select Properties. In the Options section, set the Recovery model to Simple, and click OK.
Right-click on the database again in SSMS, and select Tasks -> Shrink -> Database. Click OK.
Voila. No more Gigabytes.