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![Downgrading windows 10 to 7 increased battery efficiency 30 fold! [Lenovo x270] : r/Windows10](https://external-preview.redd.it/XHcpwVCbybtRCbO0941hxMPVCQbReRNHYyXEe-3FFkk.jpg?width=640&crop=smart&auto=webp&s=5a55cedf18ca83792f540ebb1a5df218cfe6bd22 "Downgrading windows 10 to 7 increased battery efficiency 30 fold! [Lenovo x270] : r/Windows10")
Downgrading windows 10 to 7 increased battery efficiency 30 fold! [Lenovo x270] : r/Windows10
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