How to See Which Programs Are Using All Your Memory on Windows

How to See Which Programs Are Using All Your Memory on Windows

Windows 10 Task Manager icon hero

If your Windows PC feels mysteriously sluggish or refuses to load more programs, it may have run out of working memory. When that happens, PCs often fall back to using virtual memory, which can be much slower. Here’s how to see which programs are eating up all your memory.

It’s worth clarifying that we’re only talking about memory as in RAM, which is temporary working room for your programs, not disk storage space. The best tool to see which Windows programs might be using too much RAM is a utility called Task Manager.

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First, let’s open the Task Manager. Right-click the taskbar, and in the menu that pops up, select “Task Manager.” (You can also press Ctrl+Alt+Delete and select “Task Manager” from the screen that appears.)

Right-click on the taskbar and select "Task Manager."

If you see the simple Task Manager interface, click the “More Details” button.

In Task Manager, click "More details."

In the full Task Manager window, navigate to the “Processes” tab. You’ll see a list of every application and background task running on your machine. Collectively, those programs are called “processes.”

To sort the processes by which one is using the most memory, click the “Memory” column header. The process using the largest percentage of RAM will move to the top of the list.

In Task Manager for Windows 10, click the "Processes" tab, then click the "Memory" column header.

In this window, it’s a good idea to look for programs that might be using a suspiciously large amount of memory. What counts as “suspicious” varies based on how you typically use your machine. If you frequently render 4K video projects or run complex computer games, it might be no surprise if one of those processes is using a large amount of memory (perhaps even several gigabytes).

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But if a process you don’t recognize is using the memory, or if a memory-hogging application has become unresponsive and you can’t exit the program by normal means, you might want to consider killing the process. To do that, select the process from the list in Task Manager and click “End Task.”

To kill a process in Task Manager for Windows 10, select the process from the list and click "End task."

After that, the offending program will close (sometimes it takes a few moments). If it doesn’t, try restarting your machine, which can temporarily solve a variety of problems, including a runaway application that might be using more memory than it’s supposed to.

If you’re having trouble with running out of memory on a regular basis, it might be time to consider adding more RAM to your PC, if possible. Good luck!

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Lucila is a freelance writer and lifelong learner with an ongoing curiosity to study new things. She enjoys checking out the latest grammar books and writing about video games more than anything else. If she's not running through Colorado’s breathtaking landscape, she's indoors hidden away in her cozy game room trolling noobs and leveling up an RPG character. She is a Final Fantasy IX apologist (although she loves them all… except XV), coffee aficionado, and a bit of a health nut. Lucila graduated from Western Kentucky University with a B.A. in English Literature with a minor in Creative Writing.

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