Microsoft kills off Windows 10 update that had been slowing down PCs By sleonSeptember 21, 2020September 21, 2020news RIP KB4559309 Read More » SOURCE: TechRadar Related posts: Windows 10 November 2019 Update review: Fewer features now, bigger changes later Microsoft kills off Windows 10 update that had been slowing down PCs Windows 10 October 2018 Update is rolling out once again Windows 10 November 2019 Update review: Service Packs are cool again