Windows 11 Slows Down Now, Thanks to the June Update

The latest Patch Tuesday update for Windows 11 is among the heaviest in recent memory, bringing a new low-latency mode for smoother system navigation in addition to new features and hundreds of bug and exploit patches. It’s a much-needed support package for Windows 11 as Microsoft puts renewed focus on its flagship operating system, which has fallen into disrepute among tech enthusiasts over the past few years. The Redmond giant is now ditching the Copilot buttons and shipping improvements to UX and functionality in long-abandoned areas of the OS.
Users will see the June update as KB5094126 (OS Builds 26200.8655 and 26100.8655) in Windows Update. The big news here is the low latency profile, which should help reduce the slow loading times of the main system shell elements such as the Start Menu, Action Center, and Search, as well as when launching applications. A simple trick. When the user clicks to open a system feature or application, the CPU immediately jumps to its maximum clock speed for a second or three, then back down, giving it enough operational headroom to speed up startup. Previously, the CPU would need to increase with additional load, which could exacerbate sluggish startup. Although the low-latency profile is included in the June security update, it won’t be turned on immediately for everyone. You can check if it’s enabled by viewing a live view of your CPU speed in Task Manager or a third-party tool like HWiNFO64. If it is enabled, you will see a very short spike in CPU activity when you turn on the system flight feature like the ones mentioned above.
Microsoft has been improving the Start Menu for several months now, and the low-latency profile is more than a cornerstone of that improvement. Mine has been very responsive lately, and before all the fixes, I used to wait a few seconds for it to turn on. The June update also made a noticeable improvement in app launch speed, even on my beefy gaming setup. As explained by Neowinthere are more improvements coming in the upcoming community build, including the ability to remove and add all Start Menu components. You can even disable everything, so that when the Start Menu opens, you’ll only see a notification that reads, “All startup categories are disabled.” User choice? In 2026? I pinched.
Other Windows 11 bugbears abound in this update, including improvements to Windows Store downloads. Previously, downloading and installing updates for apps and system components could be excruciatingly slow for many users. That process should now be much zippier. Windows Search is also snappier, as it will start showing up after two letters are entered. That’s a big improvement if you’re the type of person who likes to launch apps by pressing the Start key and typing, or if you use Search regularly.
New features in the June update include multi-app camera support, so now you can be on a Zoom call and take selfies at the same time. It also introduces Shared Audio, which allows Windows to stream audio to two Bluetooth LE headphones or earbuds. Also, you can finally name your user folder to whatever you like when setting up a new installation of Windows. Finally, there are new NPU monitoring tools in Task Manager, in case you have a PC with a dedicated AI chip.
It’s the biggest change you’ll ever see. Microsoft patched a staggering 206 security vulnerabilities, many of which were rated serious or critical, with threats ranging from privilege escalation and remote code execution to information disclosure and fraud, among other things. One fix (CVE-2026-45657) was more critical, a remote kernel-level code execution vulnerability with a threat score of 9.8. Microsoft said in a blog post from May that AI is found to be highly vulnerable. Both white hat and black hat researchers are capable of performing penetration testing at an inhumane rate, and Microsoft needs to stay ahead of that arms race to keep Windows systems secure.



