I bought a PC with 8 GB RAM. I installed Windows 7 in it, and now its showing that only 3.9 GB of RAM are usable? What about the remaining RAM? Is
![Only 3.95Gb of 8Gb usable ram on Ryzen, windows 10/ 64 bit, is that normal? - CPUs, Motherboards, and Memory - Linus Tech Tips Only 3.95Gb of 8Gb usable ram on Ryzen, windows 10/ 64 bit, is that normal? - CPUs, Motherboards, and Memory - Linus Tech Tips](https://linustechtips.com/uploads/monthly_2017_06/19490147_1692599444103586_1603062_o.jpg.88b3fc4f7f101e611523c1dc2fffd05d.jpg)
Only 3.95Gb of 8Gb usable ram on Ryzen, windows 10/ 64 bit, is that normal? - CPUs, Motherboards, and Memory - Linus Tech Tips
![Just installed new 8GB ram, still says 2.75GB usable, please help! - CPUs, Motherboards, and Memory - Linus Tech Tips Just installed new 8GB ram, still says 2.75GB usable, please help! - CPUs, Motherboards, and Memory - Linus Tech Tips](https://linustechtips.com/uploads/monthly_2019_02/20190220_202406.jpg.c80601032a7c2c991df27cd00672e515.jpg)