How to Check Memory Usage from the Command Line in Windows 11
Checking how much memory your system is using from the command line gives a quick view of available and used RAM, helpful when diagnosing slowdowns. Windows 11 can report memory details through both PowerShell and a simple Command Prompt tool.
The Command
Get-CimInstance Win32_OperatingSystem | Select-Object FreePhysicalMemory, TotalVisibleMemorySize
What It Does
This queries the operating system information and returns two values: the free physical memory and the total visible memory, both in kilobytes. Comparing them tells you how much RAM YYGACOR is in use. Dividing by 1024 twice converts kilobytes to gigabytes for easier reading, showing how much memory remains available.
When You’d Use This
This helps when diagnosing slowdowns you suspect are memory-related, checking available RAM before launching a demanding program, or monitoring memory in a script. Seeing free versus total memory clarifies whether the system is under memory pressure, and sorting processes by working set reveals which programs are using the most RAM at that moment.
Useful Variations
For a quick summary in Command Prompt, `systeminfo | findstr Memory` shows total and available physical memory in a readable form. To see which processes use the most memory, run `Get-Process | Sort-Object WS -Descending | Select-Object -First 10`, where WS is the working set, the physical memory each process currently uses.
If It Doesn’t Work
If the numbers are confusing, remember they are in kilobytes, so divide by 1048576 to get gigabytes. Low free memory is not automatically a problem, since Windows uses idle RAM for caching that it releases when needed, so judge by system responsiveness too. For per-process memory, sort `Get-Process` by WS, the working set, to see which programs hold the most physical memory.
Good to Know
The values from this command are in kilobytes, so a number like 8000000 is roughly 8 GB. Free memory naturally fluctuates as programs open and close, and Windows deliberately uses some otherwise-idle RAM for caching, so a low free figure alone does not necessarily mean a problem.
Putting It Together
The command shown may look dense at first, but it breaks down into clear parts once you have used it a few times. As part of understanding and controlling what runs on your PC, this command is one you will return to whenever the system feels slow or a program misbehaves. Paired with the related process commands, it gives you a full command-line alternative to Task Manager for diagnosing and managing what is running. Like anything in the terminal, the real value comes from trying it on your own system and adapting the variations above to what you actually need, so it is worth experimenting with in a safe, low-stakes situation before relying on it in a script or during troubleshooting. Keeping a note of the commands you find most useful, along with the variations that fit your workflow, turns scattered one-off tricks into a personal reference you can draw on whenever a similar task comes up again.