[Troubleshooting] Installed 4 x 48 GB memory modules, but Task Manager shows only 128 GB being used in Windows 11 Home
LastUpdate : Fri, 19 Jul 2024
Answer
Different versions of Windows 11 have limitations on maximum memory capacity. For example, Windows 11 Home Edition supports a maximum memory capacity of 128 GB.
If the installed system memory exceeds 128GB, to have complete memory capacity recognized properly in the system, an upgrade to Windows 11 Professional is needed.

*Ref: Microsoft
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