The solution is definitely to create a backup and restore it, but ensure that you're restored copy is pointing to different .mdf and .ldf files.
Here's how to check that using SSMS 2014 and a SQL Server 12 installation: assuming you're creating and restoring backups on your local disk.
- Create a backup of your existing database
- Right click the database, and choose "back up..." under "tasks."
- (If you leave the location as the default, you don't have to hunt for the back up in the next step when you restore.)
- Restore your backup to a NEW database:
- Right click on databases, choose "restore database"
- Select "device"
- Click the ellipsis button ("...") to open the "Selct Backup devices" dialog.
- Choose "File" as the backup media type and click the "add" button
- Select the backup you just made, click ok (twice)
- Now, back in the "restore database" dialog, type a new name for your destination database
- Click "files" under "select a page" and make sure that "restore as" is pointing to .mdf and .ldf file names that do not already exist
- Click ok!