Microsoft recently announced that Windows 8 will be released on Oct. 26. Tech analyst Andrew Tonner thinks this cross-device operating system could help drive upgrade cycles. This could be a major turning point for Microsoft.

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Andrew Tonner and Austin Smith have no positions in the stocks mentioned above. The Motley Fool owns shares of Microsoft. Motley Fool newsletter services recommend Microsoft. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.