Backup and Restore a Site Collection in SharePoint using PowerShell In SharePoint 2010 you can take a backup of a site collection using the Backup-SPSite cmdlet: Backup-SPSite http://SP –Path C:\Backup\siteCollection.bak Restoring a site collection in SharePoint 2010 is just as simple: Restore-SPSite http://SP –Path C:\Backup\siteCollection.bak