The users recently discovered a critical bug in Windows 10 October 2018 Update (version 1809) that causes an unexpected removal of files such as documents and pictures during the upgrade process.
There’s a growing number of users reporting the same problem and Microsoft has finally paused the rollout of Windows 10 October 2018 Update.
Today, Microsoft announced in a support document that the Windows 10 October 2018 Update has been pulled and you can no longer download the feature update.
Microsoft explains that the company is investigating the reports and the update will be republished when a fix is deployed to address the critical bug.
Source: Bleeping Computer