Windows 11’s May update is causing install failures and slow internet — here’s what we know
May 15, 2026
Microsoft’s recent Patch Tuesday update for Windows 11, designated as KB5089549, has stirred a wave of concern among users following its release on May 13, 2026. Reports indicate that a segment of users is encountering difficulties with the installation process, while others have noted a decline in internet performance post-update. These issues have emerged shortly after the update became available via Windows Update, with many users voicing their frustrations on platforms such as Reddit.
Windows 11 Update Rollback Problem
For numerous users, the installation process does not reach a successful conclusion. Instead, they are met with an error message stating, “Something didn’t go as planned. No need to worry, undoing changes.” This rollback issue appears to be particularly prevalent among systems operating on the May 2026 cumulative update.
(Image credit: Reddit (@windowssandbox)
Slow Internet After the Update
A smaller subset of users has reported a decline in internet speeds immediately following the installation of the update. While these complaints are limited, they raise questions about a potential networking bug. However, it is important to note that various factors, including individual computer settings and network equipment, can contribute to such slowdowns.
What Users Can Do Now
In instances where KB5089549 fails to install, Windows 11 typically reverts to the previous version automatically after the error occurs. Users may attempt to run the update again through Windows Update. However, past experiences suggest that if the installation has already failed once, it may continue to do so. Some users have found success by clearing the SoftwareDistribution cache, utilizing the Windows Update troubleshooter, or temporarily disconnecting nonessential peripherals before retrying the installation.
Windows Central’s Take
Given the history of Patch Tuesday updates, it is not surprising to see installation challenges arise. Although cumulative updates have improved significantly over the years, the operating system must navigate a diverse landscape of hardware, drivers, and software configurations, which can occasionally lead to complications. If the update installs without issues, it is advisable to keep it, as security updates are crucial. However, if KB5089549 has already encountered failure on your system, it may be wise to refrain from spending excessive time troubleshooting. In many cases, these updates either install smoothly or continue to falter until Microsoft addresses the underlying issues or releases a subsequent patch.
What are your thoughts about this latest Windows 11 update issue?Let me know in the comments.
More Resources
Explore more in-depth how-to guides, troubleshooting advice, and essential tips to get the most out of Windows 11 and 10. Start browsing here:
Join us on Reddit at r/WindowsCentral to share your insights and discuss our latest news, reviews, and more.
Windows 11’s May update is causing install failures and slow internet — here’s what we know
Microsoft’s recent Patch Tuesday update for Windows 11, designated as KB5089549, has stirred a wave of concern among users following its release on May 13, 2026. Reports indicate that a segment of users is encountering difficulties with the installation process, while others have noted a decline in internet performance post-update. These issues have emerged shortly after the update became available via Windows Update, with many users voicing their frustrations on platforms such as Reddit.
Windows 11 Update Rollback Problem
For numerous users, the installation process does not reach a successful conclusion. Instead, they are met with an error message stating, “Something didn’t go as planned. No need to worry, undoing changes.” This rollback issue appears to be particularly prevalent among systems operating on the May 2026 cumulative update.
Slow Internet After the Update
A smaller subset of users has reported a decline in internet speeds immediately following the installation of the update. While these complaints are limited, they raise questions about a potential networking bug. However, it is important to note that various factors, including individual computer settings and network equipment, can contribute to such slowdowns.
What Users Can Do Now
In instances where KB5089549 fails to install, Windows 11 typically reverts to the previous version automatically after the error occurs. Users may attempt to run the update again through Windows Update. However, past experiences suggest that if the installation has already failed once, it may continue to do so. Some users have found success by clearing the SoftwareDistribution cache, utilizing the Windows Update troubleshooter, or temporarily disconnecting nonessential peripherals before retrying the installation.
Windows Central’s Take
Given the history of Patch Tuesday updates, it is not surprising to see installation challenges arise. Although cumulative updates have improved significantly over the years, the operating system must navigate a diverse landscape of hardware, drivers, and software configurations, which can occasionally lead to complications. If the update installs without issues, it is advisable to keep it, as security updates are crucial. However, if KB5089549 has already encountered failure on your system, it may be wise to refrain from spending excessive time troubleshooting. In many cases, these updates either install smoothly or continue to falter until Microsoft addresses the underlying issues or releases a subsequent patch.
What are your thoughts about this latest Windows 11 update issue? Let me know in the comments.
More Resources
Explore more in-depth how-to guides, troubleshooting advice, and essential tips to get the most out of Windows 11 and 10. Start browsing here:
Join us on Reddit at r/WindowsCentral to share your insights and discuss our latest news, reviews, and more.