Microsoft’s recent June 2026 Patch Tuesday update, identified as KB5094126, has introduced a noteworthy enhancement to Windows 11: the Low Latency Profile. This feature, which aims to improve the responsiveness of core shell experiences such as the Start menu and Action Center, was subtly included in the update’s changelog under the broad category of general performance improvements.
For those who are not yet familiar, the Low Latency Profile is designed to optimize CPU performance by instantly ramping up speed when users interact with various elements of the operating system. This means that actions like opening the Start menu or searching for applications can occur more swiftly than before.
When engaged, the Low Latency Profile allows the CPU to immediately reach its maximum frequency for a brief period, typically lasting one to three seconds. This rapid response time facilitates quicker rendering of the requested interface, after which the CPU returns to its idle state. This method effectively eliminates the lag often experienced on budget or older PCs, where the gradual ramp-up of processing power can result in noticeable delays.
Despite some skepticism regarding the efficacy of this approach, Microsoft’s VP Scott Hanselman has defended the feature, emphasizing its minimal impact on battery life and thermal performance. The brief bursts of high CPU activity are designed to enhance user experience without compromising system stability or efficiency.
What is Windows 11’s Low Latency Profile, and what does it do?
In essence, the Low Latency Profile is a well-established technique utilized by modern operating systems to enhance interactive responsiveness. While some critics may view it as a simplistic solution, it aligns with similar strategies employed by other platforms, such as Apple’s, which have long prioritized user experience through rapid CPU adjustments.
Step 1: Install the June 2026 Patch Tuesday update first
To take advantage of the Low Latency Profile, users must first ensure that they have installed the June 2026 Patch Tuesday update. This can be verified by navigating to Settings > System > About and confirming that the OS Build number is either 26200.8655 or 26100.8655. If the update has not yet been installed, users can do so by checking for updates in Settings > Windows Update.
Why Low Latency Profile may not be active on your PC yet
It is important to note that Microsoft employs a Controlled Feature Rollout (CFR) system, meaning that not all devices will receive the Low Latency Profile activation simultaneously. As a result, even if the update is installed, the feature may remain dormant until activated by Microsoft’s servers.
Step 2: Install HWiNFO to monitor CPU frequency in real time
To determine whether the Low Latency Profile is active, users can utilize HWiNFO, a free hardware monitoring tool that provides real-time updates on CPU performance. This tool is more effective than Task Manager for capturing the brief frequency spikes associated with the Low Latency Profile.
- Download HWiNFO from its official website.
- Launch the application and select Full mode to begin monitoring.
Step 3: Check if Low Latency Profile is already active on your PC
With HWiNFO running, users can test the responsiveness of their system by triggering various shell experiences:
- Open the Start menu by pressing the Windows key.
- Click the Search bar on the taskbar.
- Access the Action Center by clicking the time/date area or the network icon.
Observing the CPU frequency during these interactions will reveal whether the Low Latency Profile is active. A noticeable spike in frequency indicates that the feature is functioning as intended.
Step 4: Force-enable Low Latency Profile with ViVeTool if it is not active
If the Low Latency Profile is not activated, users can enable it manually using ViVeTool, a command-line utility designed for toggling Windows features. The process involves:
- Downloading ViVeTool from its GitHub releases page.
- Extracting the contents to a convenient folder, such as C:ViVeTool.
Once set up, users can enable the feature by:
- Opening an elevated terminal window.
- Navigating to the ViVeTool folder with the command cd C:ViVeTool.
- Executing the command vivetool /enable /id:58989092 to activate the Low Latency Profile.
How to test if Low Latency Profile is working?
After restarting the PC, users should repeat the frequency checks using HWiNFO. Successful activation will be indicated by sharp spikes in CPU frequency during interactions with the Start menu and other shell elements.
What I noticed while testing, and why the CPU spikes are nothing to worry about
During testing, the impact of the Low Latency Profile was particularly evident on lower-end systems, where the responsiveness of the Start menu improved significantly. On more powerful machines, the enhancements were subtler but still noticeable, particularly in the smoothness of transitions.
Concerns regarding the brief CPU spikes associated with this feature are largely unfounded. The short duration of these spikes—typically lasting just one to two seconds—does not lead to significant heat generation or battery drain. In fact, the CPU’s ability to return to a low-power state quickly can enhance overall energy efficiency.
Low Latency Profile is just one part of the June 2026 update
While the Low Latency Profile has garnered considerable attention, it is just one of several enhancements included in the June 2026 update. Other notable features include Shared Audio for simultaneous Bluetooth headphone use, Multi-App Camera functionality, and improved Task Manager capabilities. This update represents a significant step forward for Windows 11, making it essential for users to install KB5094126 and explore the new features available to them.
