Before you go any further, please read the built-in Help documentation provided by the developers of the DataProtect client software. On the upper-right corner of the interface, click Help.
We strongly recommend reading the embedded Help content first, but if you wish to get started quickly, click the Backup tab along the top of the interface and select the folders and/or files you wish to backup by clicking their respective checkboxes. Keep in mind the storage space allotted prior to selecting the files/folders.
When you are ready, click Backup Now (lower-right corner of the interface).