Windows 10 October 2018 Update is deleting user data — here’s how to protect yourself
Microsoft’s latest version of Windows 10 appears to be wiping out users' data. If you’re planning to upgrade, remember to create a full backup before proceeding. Just in case.
The Window 10 October 2018 Update (version 1809) is now available for download, but along with the new features and improvements, it appears that some users are not having a smooth upgrade experience.