Can a free Windows 11 update really make an 8GB laptop feel faster?

Microsoft says Windows 11 version 26H2, build 26300.9818 or later, makes PCs with 8GB of RAM up to 20% more responsive, with multitasking up to 40% faster in its own lab tests. How to get the free update and check you are on the right build.

Your older laptop fans up the second you open Teams, a browser and a big spreadsheet at the same time, and everything turns to molasses. Short answer: yes — at least partly, and it costs nothing. Microsoft said on November 3 that Windows 11 version 26H2, build 26300.9818 or later, makes PCs with 8GB of RAM up to 20% more responsive, with multitasking up to 40% faster in Microsoft’s own lab test.

Those are ‘up to’ lab numbers measured against January 2026 builds, not a promise for every PC.Why it matters: 8GB is where Windows runs out of breathing room first. Microsoft retuned memory compression so Windows can keep up to 2GB more active data in fast RAM instead of pushing it to slower storage, and cut committed-memory growth by up to 900MB in its tests. Start, Search, File Explorer, Settings and the Snipping Tool are the everyday things Microsoft says feel snappier, and Teams can now turn on Efficiency Mode by default on 8GB PCs.How to get it:1.

Go to Settings, then Windows Update, then Check for updates, and install everything offered.2. Go to Settings, then System, then About, and confirm you are on Windows 11 version 26H2, build 26300.9818 or later.3. Update Microsoft Edge, Microsoft 365 apps and Teams too — some of the gains arrive through app updates, not Windows alone.4.

Restart once after updating, even if Windows does not insist — that is when the new memory handling takes full effect.5. If it still crawls, open Task Manager and check Memory — one runaway app can eat the gain all by itself.Pro tip: Do not run out and buy RAM sticks or a new laptop this week just because an 8GB machine feels slow. Install this first, live with it a few days, then decide — heavy work still benefits from 16GB, but everyday lag may be fixed for free.Ad’s take: I love this kind of update — no new box, no credit card, just your old laptop acting right again.

Microsoft’s 40% is a best-case lab number, but even half of that is a real gift on an 8GB machine.