The Google Drive back-up tool announced mid last month has been delayed according to an update on the original announcement post.
The update was added late last month, on June 26th, advising that the proposed July 12th launch date has been pushed back ‘several weeks’. The statement from Google advised:
Update (June 26th, 2017): Based on your valuable feedback, we’ve decided to delay the launch of Backup and Sync while we make improvements to the product. We’re planning to launch in the next several weeks, but please monitor the G Suite Release Calendar for the specific date.
The tool, which was coming to both Windows and MacOS, was designed to replace existing functions and backup not only individual files, but all specified folders, making for a complete backup solution, if that’s what you wanted.
At this stage, there is no firm release date, with Google simply advising you keep your eye on the G Suite release calendar for a date.