Windows 10 is a series of personal computer operating systems produced by Microsoft as part of its Windows NT family of operating systems. It is the successor to Windows 8.1, and was released to manufacturing on July 15, 2015, and to retail on July 29, 2015. Windows 10 receives new releases on an ongoing basis, which are available at no additional cost to users. Devices in enterprise environments can receive these updates at a slower pace, or use long-term support milestones that only receive critical updates, such as security patches, over their ten-year lifespan of extended support.

This two-hour-plus compilation of the first five years of the history of John Mayall and his band the Bluesbreakers in their many permutations covers all the expected bases and then some. Eric Clapton, Peter Green, and Mick Taylor are all represented, but so are Bernie Watson and Roger Dean, both of whom preceded Clapton in the guitarist's spot in the band. What's more, they're not bad; they may not have been the assertive soloist that Clapton came to embody, but Dean plays a pretty hot solo on "Crocodile Walk," which was good enough to make the A-side of a single in 1965. Moreover, there was more to any of the Mayall bands than their guitarists, and Mayall's blues harmonica is showcased throughout, on tracks such as "Crawling Up a Hill" and "Blues City Shakedown."