Windows 10 1809 ZIP bug now fixed: So will Microsoft rerelease October update today?

Microsoft rolls out a preview fix to address the Windows 10 October 2018 Update ZIP copy fail.
Written by Liam Tung, Contributing Writer

Microsoft has released a fix for its ZIP extraction failure, which affects the few users who installed the Windows 10 October 2018 Update, version 1809, before the rollout was halted.

The cumulative update KB4464455 has been offered to Windows Insiders in the Slow and Release Preview rings, bringing the Windows 10 1809 build up to 17763.107.

The update contains the same fixes that Microsoft released in preview on October 16, which addressed a Task Manager issue showing incorrect CPU usage and several other bugs.

It also includes two additional fixes, including one for the ZIP bug that surfaced a few weeks after Microsoft had pulled the Windows 10 version 1809 release due to users experiencing severe data loss after installing the update.

"We fixed the issue where dragging (extracting) files from a .zip file in File Explorer to a write-protected location you don't get a "Do you want to replace these files" prompt and the copy action fails silently," explained Microsoft.

Microsoft has already provided a workaround for the ZIP-extraction bug and has warned users against using Cut and Paste to move items from a compressed .ZIP folder because it could delete the source files.

KB4464455 also fixes an issue "causing roaming profiles to not work correctly", Microsoft noted.

SEE: 20 pro tips to make Windows 10 work the way you want (free PDF)

Microsoft has been retesting the Windows 10 October 2018 Update with fixes for the data-loss bug since October 9, three days after halting the update, and seven days after releasing it to the general public.

The company may rerelease Windows 10 1809 today to keep to the October schedule, assuming it's satisfied with the stability and quality of its fix for the data-destroying bug.

Releasing 1809 on the last day of October would put it on par with the April 2018 Update, version 1803, which was released on April 30.

Two and half months after releasing 1803 Microsoft declared 1803 "ready for business" and revealed it was the fastest release ever to reach 250 million machines.

However, uptake was hampered by a string of bugs, including incompatibilities with Avast, and Chrome freezing.

The bugs in 1809 and the fact Microsoft missed them during testing has left many Windows users wondering whether Microsoft has serious flaws in its approach to building and testing Windows 10.

As ZDNet's Ed Bott speculates, Microsoft may have become overreliant on telemetry data, which captures some errors well, but not the ones that an experienced software tester could.

Previous and related coverage

Windows 10 1809 ZIP copy fail: Microsoft reveals workaround, patch due November

Microsoft offers a workaround for a bug that causes the silent failure of copying from ZIP folders to regular folders.

New Windows 10 1809 bug: Zip data-loss flaw is months old but Microsoft missed it

A Feedback Hub user reported the latest Windows 10 October 2018 Update bug three months ago. Microsoft has fixed the issue in preview builds of the 19H1 version of Windows 10, so it should be fixed in 1809 soon.

Windows 10 October update's new public rollout nears as Microsoft fixes more bugs

Microsoft finds and fixes more glitches in Windows 10 October 2018 Update.

Windows 10 audio problems? Intel issued buggy driver but we fixed it, says Microsoft

Intel accidentally pushed an incompatible audio driver to Windows 10 devices through Windows Update.

More Windows 10 October update woes? HP users report BSOD after Tuesday patch

Admins struggle with the latest Windows 10 1809 patch on some HP systems.

Windows 10 1809 bungle: We won't miss early problem reports again, says Microsoft

Microsoft makes changes to its Feedback Hub after failing to notice early reports flagging up data losses caused by the Windows 10 October 2108 Update.

Microsoft halts rollout of Windows 10 October 2018 Update: What happens next?

Only days after releasing its latest feature update to Windows 10, Microsoft abruptly stopped the rollout and pulled the new version from its download servers as it investigates "isolated reports" of a data-destroying bug. What should you do now?

Windows 10 October update delete your files? This tool might recover them

No word yet from Microsoft about Windows 10 October 2018 Update deleting user files -- but it's a problem Windows Insiders have encountered before.

Windows 10 October update problems: Wiped docs, plus Intel driver warning

Back up files before upgrading to Windows 10 1809, and if you get a warning about Intel drivers, do not proceed.

Microsoft begins rolling out Windows 10 October 2018 Update

Microsoft is starting to roll out the Windows 10 October 2018 Update today, starting with Insiders and those ready to proactively grab the new bits.

Windows 10 October 2018 Update: 5 new features business users will love TechRepublic

Windows 10 is getting a big update in its next release. Here are some of the enterprise-centered features to expect in the Windows 10 October 2018 Update.

Surface Pro 6, Surface Laptop 2, Surface Studio 2 and Surface Headphones: Everything Microsoft just announced CNET

Plus: Windows 10 October 2018 Update is now available.

Editorial standards