This means the company can’t yet tell for sure which devices are affected or not, so it’s better not to install the update until a fix is shipped. In the meantime, Microsoft recommends users to stay away from Windows 10 version 1809, as it’s still conducting its own investigation to determine the cause of the bug.
Needless to say, a bug that removes user files needs a fix as fast as possible, so blocking more systems from getting the October 2018 Update was probably the right decision. One of the issues caused the update to remove certain user files during the upgrade, and although it’s not known how widespread it is, it was critical enough to convince Microsoft to suspend the rollout. The release of Windows 10 October 2018 Update (version 1809) has turned out to be quite a fiasco, as Microsoft pulled it only a few days after the launch due to major bugs.
