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Sep 19, 2026 · Fundamentals
Why DWM.exe Uses So Much Memory: Inside Windows' Desktop Window Manager
This article explains why Windows' Desktop Window Manager (dwm.exe) consumes significant memory and CPU, tracing its evolution from the immediate-mode rendering of Windows XP to the modern compositing model that enables transparency, animations, and stable multitasking by offloading rendering to the GPU.
AeroDesktop Window ManagerGPU acceleration
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