A recent problem with Windows’ ability to update had both customers and Microsoft scrambling to pinpoint the cause. After research into the problem, Microsoft identified a global DNS corruption that led to a major outage. Many customers noticed the issue several hours prior through many other means (product and service failures that also depend on DNS), but the Windows 10 updating problem was the final indicator.
Microsoft has now provided an explanation through the Windows 10 History Page…
February 4, 2019 9:45 PM PST
“The Windows Update service was impacted by a data corruption issue in an external DNS service provider global outage on January 29, 2019. The issue was resolved on the same day and Windows Update is now operating normally, but a few customers have continued to report issues connecting to the Windows Update service. We expect these issues will go away as downstream DNS servers are updated with the corrected Windows Update DNS entries.”