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Boboin
Iron Contributor
Jan 16, 2026

Is It Normal for Windows 11 to Occupy 6-8GB of Memory on Startup in a 16GB RAM System?

A 2021 ultrabook equipped with 16GB of RAM and pre-installed with Windows 11 shows memory usage consistently between 40% and 50% after startup (approximately 6.4GB to 8GB). This value significantly exceeds the widely reported 29% memory usage (approximately 4.6GB) for 16GB RAM systems. I would like to understand whether this memory usage is normal, why it is higher, whether optimization is needed, and whether there is cause for concern.

1 Reply

  • For a Windows 11 system with 16GB of RAM, a boot-up memory usage of 6-8GB is normal and there is no need for concern or excessive optimization.

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