Microsoft says it fixed a Windows 10 update bug that deleted folders

Microsoft says it fixed a Windows 10 update bug that deleted folders

The text now also states that users who miss files after they installed the Windows 10 October 2018 Update should "minimize the use of the affected device".

Over the weekend, Microsoft pulled the latest update build of Windows 10 (version 1809) after a bug that flew past its Feedback Hub without the company's notice resulted in mass file deletion for some users.

Users who lost files typically had Known Folder Redirection set up, but the files hadn't been moved, Cable explained.

"Prior to re-releasing the October 2018 Update our engineering investigation determined that a very small number of users lost files during the October 2018 Update", stated the Microsoft announcement. "While the reports of actual data loss are few (one one-hundredth of one per cent of version 1809 installs), any data loss is serious", Cable said in a statement.

Cable said Microsoft found that the file deletion happened if users had enabled redirection of Windows user data folders - including Desktop, Documents, Pictures, Screenshots, Videos, Camera roll and more - away from their default location under C:\Users\$UserName.

Users who moved a Known Folder to OneDrive but did not move files in the process had files deleted in the old location. For example, an empty copy of the original C:\Users\Name\Downloads folder appeared.

UN Ambassador Nikki Haley resigning
FILE PHOTO: US Ambassador to the UN Nikki Haley arrives at UN headquarters in New York, US, September 18, 2017. She also complimented members of Trump's team, including senior advisers Jared Kushner and Ivanka Trump .

This fixed version of the Windows 10 October 2018 Update is first being made available to Insiders for final testing and after analyzing the feedback and data from the Insider community, Windows 10 October 2018 Update will be re-released to the general public soon.

Microsoft explains it has identified and fixed various scenarios in which KFR files were deleted, so you should no longer encounter the issue. So I'm following Woody's Defcon numbering system with regards to any Windows Updates and waiting to let others be the BETAs that Bleed!

Microsoft enabled new feedback functionality today that adds options to classify impact and severity of the reported issue.

Windows 10 1809 won't be broadly released until early adopters in the Windows Insider program have tested the revised update and provided feedback to Microsoft. The company has released Windows 10 cumulative updates to several previous versions of the operating system, including the April 2018 Update, Fall Creators Update, Creators Update, and the Anniversary Update.

To help our customers that may be impacted by this issue, Microsoft Support is assisting customers and trying to recover data for users who may have experienced related data loss.

Related Articles