Windows 11 is facing a new performance problem with users complaining about slower NVMe since the launch of the platform. It seems the issue is varied and not affecting all users, with several drivers showing different symptoms.

Some users have taken to Microsoft’s own forums to complain. For examples, there are some who say they SSD write performance, reducing to around half what it was when running on Windows 10.

On the Reddit thread that discusses the same issue, Microsoft’s Neal Christiansen confirmed the problem and says the company is looking into it:


“Greetings, I am on the Microsoft file systems team and am investigating this issue.”

There are some threads in the Windows 11 Feedback Hub that also touch on the NVMe issue:

Nvme m.2 and ssd 4k random write speed halved and read acces time tripled in windows 11.

[NVME] Poor Peak Write Performance, Write IOPS and Latency

While Microsoft is investigating and working on a fix, users facing this issue will just have to put up with it. There does not seem to be a workaround and we guess the fix will not come until January Patch Tuesday at the earliest.

Windows 11 Performance

Performance has been a talking point around Windows 11 since the platform launched back in October. Despite the company promising massive performance gains from Windows 10, the OS seems to be not quite what Microsoft was offering.

The company recently promised it will make improvements to Windows 11 performance, but not until 2022.

“Performance will be an area of focus for us in 2022. A lot of that focus will go into startup/launch perf; in terms of UI elements rendering on the screen (after the framework is loaded), we’ve tested the scalability of doing things like putting 10k buttons on the screen, etc. Most of the UI elements render pretty quickly already, but it would be good to understand if there are specific UI element scaling/slowness issues you’re experiencing and we could take a look into that specific scenario.

[…] Internally, in addition to wanting to focus some of our our UX framework’s time on perf in 2022, we also have a dedicated team formed recently to tackle this topic more holistically. So there’s multiple things we’re collectively doing here to try and make sure we have a good perf story.”

Tip of the day: Whether you’re planning an upgrade, tuning CPU timings, or just curious, it’s handy to know information about your RAM. In our tutorial, we show you how to check RAM speed, type, and size using several built-in Windows tools.