Microsoft says Windows 11 is now “up to 20% more responsive”, especially on 8GB PCs

A right-click on a file. Opening the Start menu, Settings or the Snipping Tool. Those are the everyday actions, repeated dozens of times a day, that Microsoft put on the stopwatch before declaring on Thursday, October 15, that Windows 11 is now “up to 20% more responsive.”

The claim appears in a post on the Windows Experience Blog by Navjot Virk, corporate vice president of Windows Experiences at Microsoft. Most of the gain is said to come from smarter use of memory and system resources rather than from new features. And the least powerful machines stand to benefit most: on an 8GB PC, Virk says users may see “an especially meaningful difference.”

Two more gigabytes kept in memory

The main change is about what Windows keeps close at hand. According to Microsoft, the system can now hold up to 2GB more active data in RAM instead of pushing it out to much slower storage. In practice, switching back to a browser tab or an app left in the background should less often trigger that pause while the machine catches up. The effect should be most noticeable on PCs with a spinning hard drive or a budget SSD.

The second change is narrower. On computers with 8GB or less, Widgets (the panel of news, weather and stock prices) will load only when the user opens them. Microsoft says that frees more than 200MB for other apps. On a machine where a browser, an email client and a spreadsheet are already fighting over memory, that is not trivial.

Microsoft also points to faster startup and gains in File Explorer, search, Microsoft 365 and Edge. A string of smaller changes comes with it: the taskbar can be moved to the sides or the top of the screen, Windows Update promises fewer unexpected restarts, Windows Hello should recognise faces and fingerprints faster, and pairing AirPods should be up to 15 seconds quicker.

A number measured on a test build

The “20%” is worth reading alongside its footnotes. Microsoft arrived at it by comparing response times for six features (Search, Start, right-click, Settings, Snipping Tool and File Explorer) between Windows 11 build 26300.9550 and build 26200.7628. The first belongs to the 26300 series that Microsoft has been shipping to Dev Channel testers in its Windows Insider programme since January; the second is from the 26200 branch, the 25H2 version that the general public runs. The headline gain is therefore a ceiling, measured by Microsoft itself, and the footnote warns that actual performance varies by device, configuration and usage. No independent measurements have been published yet, and Microsoft gives no figure specific to 8GB PCs.

The announcement makes good on a promise from the summer. In early August, Microsoft listed slimming Windows down on machines with 8GB and above among its engineering priorities for 2026, without putting a number on it, as several specialist outlets noted at the time. It is a sore point: Windows 11 officially requires 4GB of memory and a TPM 2.0 security chip, yet it has a reputation for struggling well above that floor. Since free support for Windows 10 ended on 14 October 2025, many businesses, schools and households have moved to Windows 11 on hardware that was never designed for it.

How to get it

There is nothing to buy or install separately. Microsoft says the improvements are “now beginning to roll out broadly,” but gives neither an update (KB) number nor a schedule, and cautions that timing may vary by device and region. The safest route is Settings, then Windows Update, then “Check for updates.” Windows Update also offers an option to get new features as soon as they are available, rather than waiting for the general wave. On a slow or metered connection, it is better to run the update over a fixed-line network.

Not everything is arriving at once. Windows’ new AI-powered search, unveiled the previous week, is for now limited to Insider programme members; Microsoft says it will roll out more broadly “later this year.” The same goes for the new Photos app, whose viewer Microsoft says opens 30% faster, another figure drawn from build 26300.9550.