Hi Waseem. I'm Greg, 10 years awarded Windows MVP, specializing in Installation, Performance, Troubleshooting and Activation, here to help you.
Hardware reserved memory is reserved by a hardware device, usually the graphics adapter.
Known as VRAM this RAM can not be decreased but sometimes can be increased if needed for graphics performance as shown here:
https://www.makeuseof.com/tag/video-ram-windows...
https://www.easypcmod.com/how-to-increase-dedic...
To see a graphical representation of your memory apportionment, type Resource Monitor in Search, open it as Admin and click on Memory tab.
I hope it helps. Feel free to ask any questions.
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