The 20% figure has a specific scope
In its update published on 15 October, Microsoft claims up to 20% better responsiveness. The methodology note compares builds 26300.9550 and 26200.7628, measuring response times for Search, Start, the context menu, Settings, Snipping Tool and File Explorer.
This is therefore not a general 20% increase in PC performance. The figure does not support a claim of equivalent gains in games, 3D rendering or video encoding. It describes Microsoft’s measurements of specific interactions, with results that may vary from one machine to another.
Less pressure on 8 GB systems
Microsoft says it can keep up to 2 GB of additional active data in memory rather than moving it to storage. On PCs with 8 GB or less, Widgets are loaded when opened, which can free up more than 200 MB.
These two announcements describe different mechanisms. The first aims to keep data needed for current tasks readily accessible; the second reduces background memory use. Neither means the operating system physically adds RAM to the computer.
For users, the intended benefit is smoother switching between multiple windows or tabs. However, the experience will depend on what was already limiting the system: a Windows optimisation does not affect every workload in the same way.
Improvements beyond memory
Club386 also highlights the announced changes to Windows Hello, with face and fingerprint sign-in described as faster and more reliable. The outlet notes the arrival of actions directly from Search and the potential of Advanced Shader Delivery to shorten some loading stages in supported games.
These new features should not be treated as a single package immediately available on every PC. Rollout is gradual, and some experiences are offered first to Windows Insider participants.
What needs to be measured
The interesting comparison will be the same actions on the same machine before and after updating. Opening File Explorer, calling up Search and switching between applications will help establish a tangible benefit beyond the highest advertised percentage.
Key takeaways
These optimisations are a useful step, particularly for modest PCs. The 20% figure remains a Microsoft claim about the responsiveness of certain interfaces: it does not replace independent measurements of everyday use.