How to Check if Low Latency Profile Is Active on Windows 11

Low Latency Profile on Windows 11 is designed to improve system responsiveness by temporarily boosting CPU frequency during key shell interactions such as Start, Search, and Notification Centre. The feature operates in the background with no visible toggle, notification, or control panel setting and is disabled by default (at the time of writing). Because of this design, there is no direct way to confirm it is enabled. You either have to assume it's not a placebo and hope for the best, or you can try to figure things out via observation.

Prerequisites Before Testing

Before you do anything, make sure Windows 11 is fully updated. This feature is only available in newer builds and cumulative updates, including Windows 11 24H2 or 25H2 with the recent KB5089573 update or newer. Here are a few steps on enabling it if you haven't got that far yet.

How to Enable the New CPU Boost Mode on Windows 11 for a Processor Performance Boost

This process requires a tool called HWiNFO, which is a lightweight system monitoring and diagnostic tool for Windows that shows detailed real-time information about your computer’s hardware. People generally use it to check things that Windows does not show full details for in Task Manager.

To install HWiNFO via Windows Package Manager:

Open Terminal or Command Prompt as administrator and run:

After installation, allow the system to idle for one to two minutes before testing to make sure baseline activity stabilises. It will be easier to track the data this way.

How to Check if Low Latency Profile is Active on Windows 11

For this process, there are three simple tests.

• Open HWiNFO and go to the CPU frequency or core usage sensors.
• Keep the tool visible while performing system interactions.
• Make sure no background applications are actively loading the CPU.

Test 1:

• Open the Start menu using the Windows key.
• Watch CPU behaviour during the animation and loading of the menu.
• Look for a short burst where multiple cores spike in frequency for one to three seconds, followed by a quick return to idle.
• If you see some big spikes, you know that it's working.

Test 2:

• Press the Windows key plus S to open Windows Search.
• Repeat the observation process.
• A successful Low Latency Profile response typically shows synchronised short CPU spikes aligned with the opening animation.

Test 3:

• Press the Windows key plus N to open Notification Centre.
• Again, observe CPU frequency behaviour.
• Consistency across repeated interactions is more important than a single spike.

What Results am I looking for?

When Low Latency Profile is active, the system tends to show a consistent pattern:

• Short, sharp CPU frequency spikes triggered by shell UI actions
• Spikes lasting only a few seconds
• Immediate return to idle or low power states
• No sustained high CPU load after the interaction ends

When you're performing any of the above tasks, you should see big spikes in the data signalling that a boost was given to the process. If you aren't seeing anything significant, it's probably not active. Though you need to keep in mind that this will look a lot more extreme on older devices. New computers won't show as extreme changes in the data.