Articles about Patch Tuesday

Six newly discovered Windows vulnerabilities, including one rated as critical, could crash systems, allow attackers to run malicious code, or expose sensitive data. The flaws were uncovered by Check Point Research and privately reported to Microsoft under a responsible disclosure process.

One of the most notable discoveries involves what is likely the first publicly disclosed bug in a Rust-based Windows kernel component. Rust is often chosen for its ability to prevent memory errors that have historically led to security flaws

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When Microsoft released the KB5062553 update for Windows earlier this month, it addressed a number of issues in the operating system. However, it also caused problems with Azure Virtual Machines.

As such, Microsoft has been forced to publish another emergency patch to fix a problem caused by one of its own software updates. This time around, the out-of-band fix is the KB5064489 update, and it is available for both Windows 11 and Windows Server 2025.

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Following the release of the KB5058405 update last month, Microsoft acknowledged that it was causing problems for some users. Affected users were left with startup issues and a warning of a 0xc0000098 error in the ACPI.sys file.

Now the company has released an out-of-band fix for the issue in the form of the KB5062170 update. Such is the impact of the original problem that Microsoft recommends installing this update in place of the May 2025 security update for Windows 11.

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It's time to update Windows 11 again. Microsoft has just unleashed the KB5055523 update, and it is chock full of fixes for a series of bugs, problems and irritations in the operating system.

One of the most frustrating issues addressed by the KB5055523 update is a peculiar flaw in Explorer that rendered the ... menu all but useless. But there are lots of other fixes to be found in this security update, as well as new features and options -- especially for Copilot+ PCs.

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It's that time of the month when Microsoft releases preview versions of next month’s updates for Windows. For the eager -- and brave -- they provide a way to get early access to new features and options as well as fixes for problems.

Windows 11 users now have the KB5052093 update to download and install if they want to jump in ahead of Patch Tuesday, and this is a nice little update that not only patches a bunch of bugs, but adds a tasty selection of new bits and pieces. A highlight is the ability to use a single webcam in multiple apps.

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The last round of security updates saw Microsoft release the KB5051987 update for Windows 11. As this patch addresses a number of security issues with the operating system, it is a mandatory update that will be automatically installed for most people.

As we’ve seen time and time again, the automatic installation of security updates is a good thing... until it isn’t. And with the KB5051987 update, there are numerous problems that raise the question of whether it is advisable to have Microsoft pushing out obligatory patches that can wreak havoc.

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The recently released security updates for Windows 10 and Windows 11 are proving problematic for some people. Microsoft has acknowledged issues with the KB5049981 and KB5050009 updates on systems with “certain Citrix components installed”.

With Windows 10 breathing its last, users will be keen to grab all available security updates before Microsoft abandons it later in the year, so it is good that while there is not yet a proper fix for the problem, a workaround is available.

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Microsoft has released the KB5044380 update for Windows 11, a preview version of the update that will roll out to everyone next Patch Tuesday. There is quite a lot to be found in this particular release including the previously announced ability to remap the Copilot key on a keyboard if you don’t like its default function.

As this is a preview update there are no security fixes, but problems with multi-function printers, Microsoft Teams, and high battery usage have all been addressed. There are numerous tweaks, fixes and additions that are available immediately to anyone installing the KB5044380 update, but there are also some that are subject to a more gradual rollout.

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Following the launch of Windows 11 24H2, this week marks the release of the final updates for various other versions of Windows. This means that anyone who has yet to upgrade from Windows 11 22H2 will not receive any more security updates.

There are numerous editions of Windows 11 affected by the end-of-service, specifically Windows 11 Home, Pro, Pro Education, Pro for Workstations and SE. The same is true for Windows 11 21H2 Enterprise, Education and IoT Enterprise, none of which will receive further updates. So, what does this mean for users?

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Copilot being added to Windows 10 was something of a surprise for an operating system that is very much breathing its last. And more than just bringing the AI-powered assistant to Windows 10, Microsoft is continuing to update it with big changes.

The release of the KB5040427 update for Windows 10 this Patch Tuesday is a good example. Microsoft has used this update to fix lots of OS bugs -- including an infuriating taskbar niggle – and also tweaked Copilot to make it function like an app.

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Microsoft is far from giving up on Windows 10 or abandoning its users. With the release of the KB5039211 update, the company has not only fixed issues such as the lsass.exe memory leak, but is also bringing new features to the aging operating system.

The Snipping Tool receives a major update that will please Android users. The KB5039211 update also addresses a number of security problems with Windows 10, but a number of known issues remain.

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Microsoft has released its monthly patches for Windows 11 in the form of the KB5037771 update. There are lots of fixes in this release including for problems with domain controllers, VPNs, and SMB clients.

There are a number of security fixes, but also more controversial changes -- including ads in the Start menu (or app recommendations as Microsoft calls them). Other changes include improvements to Widgets and Windows Subsystem for Linux 2 (WSL2).

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Windows 10 may be in the later stages of its life, but Microsoft has still not given up on it. With just 18 months of support left, the company has released the KB5035941 update which adds Windows Spotlight to your desktop background as well as new lockscreen widgets.

The new additions come despite Microsoft's previous assertion that nothing new would be added to Windows 10. This non-security update also includes a number of fixes and changes, such as updates for Windows Hello for Business.

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Windows 10 users have a new security update to install in the form of the KB5035845 update. In addition to addressing a number of security issues, this mandatory update also kills the Windows Backup app for many people and introduces various other changes.

One of the most interesting additions to be found in the KB5035845 update are improvements to Windows share. There are also fixes for various issues in Windows 10 including Windows Hello problems.

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Microsoft has released a new security update for Windows 11. KB5035853 is a mandatory update which not only addresses security issues, but also introduces changes to make Windows 11 compliant with new DMA legislation in Europe.

On top of this, the update fixes the 0x800F0922 error which many people started to experience back in February. The KB5035853 update also features various other changes and additions such as the arrival of support for the USB 80Gbps standard.

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