High memory/ram usage

Run this and paste the info here.

Hit Winkey-R and type in resmon then go to the Memory tab. Here, you can see what is using your available memory. Have your game running to see how much memory it's using.

Also, go to Settings and search for "Startup." This will show you what startup apps you have and let you enable or disable them.

Note that having a browser running, especially with lots of tabs open, will probably use up more memory than anything else.

Tech Support Guy System Info Utility version 1.0.0.9
OS Version: Microsoft Windows 10 Home, 64 bit, Build 19045, Installed 20210302115042.000000-420
Processor: Intel(R) Core(TM) i7-10700K CPU @ 3.80GHz, Intel64 Family 6 Model 165 Stepping 5, CPU Count: 16
Total Physical RAM: 16 GB
Graphics Card: Virtual Desktop Monitor
Hard Drives: A: 953 GB (679 GB Free); C: 476 GB (16 GB Free); D: 1862 GB (315 GB Free);
Motherboard: Micro-Star International Co., Ltd. Z490-A PRO (MS-7C75), ver 1.0, s/n 07C7511_KB1E068839
System: American Megatrends Inc., ver ALASKA - 1072009, s/n Default string
Antivirus: Windows Defender, Enabled and Updated

As MPR said, RAM is not your problem. On my Win 10 PC with 16GB of RAM, Windows will use 37-39% of RAM when it is idle, with nothing running. Windows loads as much of the OS as possible into RAM so that things run faster when you click on different parts of the OS. Unless you are seeing problems in game, then you have nothing to worry about.

There is absolutely nothing wrong with your computer. It appears to be a quite decent gaming machine. If you are experiencing lag in online games it might be your internet connection that's causing it. If you want to see what's using your memory then hit Win-R and type in "resmon." You will likely find the most RAM is used up by your browser, especially if you have lots of tabs open. Run your game in the background and it will show how much RAM it's using.