how to reduce hardware reserved memory on my laptop Ryzen5 ,i have 8GB ram but hardware reserved 2.1

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1. System:
2. Battery or AC:
3. Model:
4. Frequency of occurrence:
5. Reset OS:
6. Screenshot or video:

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Detailed description：

how to reduce hardware reserved memory on my laptop Ryzen5 ,i have 8GB ram but hardware reserved 2.1

you cannot change right now. Windows will manages automatically for all installed hardware Device memory.
so don't concentrate on this.
Always try to concentrate how to keep your windows os is safe including data's.