Latest Windows 10 cumulative update slows systems, breaks connectivity, and can delete files
Bluetooth and Wi-Fi issues are among the problems with the latest cumulative update for Windows 10.
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What you need to know
Updated April 23, 2020:Reports have now emerged stating the update can cause file deletion bugs. We’ve updated this article with more details.
Another Windows 10 update is causing issues for people, though the issues seem to affect a relatively small number of systems (via Windows Latest). Windows 10 KB4549951 is failing to install onto some people’s systems and breaking Bluetooth and Wi-Fi connectivity for others. Additionally, some people have seen their systems slow down significantly since the update or seen the “blue screen of death.“Windows Latest also addedseveral reports of a file deletition bug.
People went toMicrosoft answers forumsandRedditto point out their issues with the update. Reddit user “fellow_netizen” experienced slowdowns following the update,stating:
Our environment: Pro Workstations Running 1909 on a Domain network.This KB4549951 update slowed networking to a crawl. Outlook 365 on hosted Exchange took several minutes to load/or freeze and Remote Desktop loaded to black screen to the target computer(s). This update also causes VM ware to freeze. Everything resumed to normal following uninstall and setting Updates to defer for 30 days.
One user on the Microsoft answer forumsexpressed frustrationwith the update’s failure to install. Windows Latest also spotted a collection of complaints and received emails about Bluetooth and Wi-Fi breaking after the update and people seeing the “blue screen of death.”
Some people reached out to Windows Latest following initial reporting of issues with the update to add that the update seems to also cause a file deletion bug. For affected people, their files were moved or deleted following the update.
Microsoft hasn’t acknowledged any issues with the update at the time of publication. It’s important to point out that Windows 10 is on over1 billion systems, so there are often bugs and issues on a small subset of devices. While the issues may not be widespread, they can be frustrating for the everyday users and system admins that have to deal with them. If you want to remove the update, you should be able to do so following these steps:
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Sean Endicott is a tech journalist at Windows Central, specializing in Windows, Microsoft software, AI, and PCs. He’s covered major launches, from Windows 10 and 11 to the rise of AI tools like ChatGPT. Sean’s journey began with the Lumia 740, leading to strong ties with app developers. Outside writing, he coaches American football, utilizing Microsoft services to manage his team. He studied broadcast journalism at Nottingham Trent University and is active on X @SeanEndicott_ and Threads @sean_endicott_.
