On a terminal server, open Microsoft Dynamics GP. Go to Microsoft Dynamics GP menu -> Maintenance -> Backup
In the Company Name list, click your company name.
Change the path/name of the backup file if it is required, and then click OK.
Backup from SQL server
SQL Server Studio -> Right click on database (backup both company and Dynamics) -> Tasks -> Backup -> Choose full -> add or change default link if required -> choose file name -> click ok