The world now knows why last week's Microsoft windows 10 upgrade deleted unlucky users' files: the software treated the default user directory as ripe for destruction, because it thought the files were elsewhere. The upgrade has since been pulled.

Last week, some unfortunate punters who hit the “download” button on the Windows 10 October 2018 Update received the gift of extra disk space, because they lost their \Documents directories.

On a support page issued on Tuesday, Microsoft's sparse explanation of the bug is as follows: “An incorrect timing calculation may prematurely delete user profiles on devices subject to the 'Delete user profiles older than a specified number of day' group policy.”

Microsoft's John Cable went into more detail over here .


Microsoft deletes deleterious file deletion bug from Windows 10 October 2018 Upd ...
Microsoft yanks the document-destroying Windows 10 October 2018 Update READ MORE

The bug, Cable wrote, affected people who had used a feature called Known Folder Redirection, a tool for folks who have filled their hard drive and wanted new files destined for their Desktop, Documents, Pictures, Videos, Camera Roll, and other such default directories to be stored on another device, such as in D:\user . You keep can saving files into the usual Downloads folder, for instance, and it's actually saved on another drive with free space, in other words.

In April, Windows Insider guinea pigs reported a bug in this folder redirection feature that created empty copies of the so-called known folders the standard issue directories like Desktop, Downloads, etc. To fix that, “we introduced code in the October 2018 Update to remove these empty, duplicate known folders. That change, combined with another change to the update construction sequence, resulted in the deletion of the original 'old' folder locations and their content, leaving only the new 'active' folder intact.”

In short, the OS would potentially wipe your original known folders if you had redirected them to another drive. The three setups that would trigger the deletion are:

\user\ c:\users\username\onedrive\pictures

There's still a mystery about why Microsoft let Windows 10 October update ship with the bug, because it was reported by testers of Insider releases in June and August.

Here's the June complaint : “Yesterday morning my dev laptop upgraded to insider preview build 17692. When I logged in, I was surprised to see that C:\Users\me\Documents<\code> contained only "desktop.ini'.”

Sound familiar? It certainly did to the 57 other Insiders who clicked: “I have the same question."

And in August , another user upgraded to “Evaluation Copy Build 17713.rs5_release. 180706-1551” and also lost files and 167 other users made the same report.

The file-trashing update was axed, and a fixed release is now available to Windows Insiders to try out. This comes amid the release of a suite of Windows security patches worthy of anyPatch Tuesday, covering “Windows Kernel, Microsoft Graphics Component, Microsoft Scripting Engine, Internet Explorer, Windows Storage and Filesystems, Windows linux, Windows Wireless Networking, Windows MSXML, the Microsoft JET Database Engine, Windows Peripherals, Microsoft Edge, Windows Media Player, and Internet Explorer.”

Basically, update your Windows 10 machines, and deploy widely when ready and tested.

本文系统(windows)相关术语:三级网络技术 计算机三级网络技术 网络技术基础 计算机网络技术

tags: Windows,Microsoft,user,another,files,The,bug,October
分页:12
转载请注明
本文标题:Microsoft deletes deleterious file deletion bug from Windows 10 October 2018 Upd ...
本站链接:https://www.codesec.net/view/604141.html


1.凡CodeSecTeam转载的文章,均出自其它媒体或其他官网介绍,目的在于传递更多的信息,并不代表本站赞同其观点和其真实性负责;
2.转载的文章仅代表原创作者观点,与本站无关。其原创性以及文中陈述文字和内容未经本站证实,本站对该文以及其中全部或者部分内容、文字的真实性、完整性、及时性,不作出任何保证或承若;
3.如本站转载稿涉及版权等问题,请作者及时联系本站,我们会及时处理。
登录后可拥有收藏文章、关注作者等权限...
技术大类 技术大类 | 系统(windows) | 评论(0) | 阅读(14)