How to reduce RAM usage in Windows 11 and optimize processes

If you use Windows 11 on a PC with low RAMYou've probably noticed more than once that everything lags when you're in the most hurry. The system starts slowly, applications take forever to open, and switching between windows becomes a minor ordeal. It's not always the hardware's fault: often, Windows is loading background processes, services, and programs that eat up memory without you even realizing it.

The good news is that there are Many ways to reduce RAM usage in Windows 11 and get the most out of what you already have, without having to spend money on new modules (which, by the way, aren't exactly cheap). Throughout this guide, you'll see simple tricks, more advanced settings, and also when it's worth giving up on configuring your system and considering upgrading your physical memory.

How much RAM does Windows 11 really need and why does its consumption skyrocket?

Windows 11 starts with very modest requirements on paper: 4GB RAM minimumThe problem is that this figure only meets the minimum requirements; for comfortable use of the system, even without doing anything demanding, it's easy for the actual consumption to exceed 8 GB simply with the system, the browser and a few apps open.

In practice, for smooth operation of the equipment, it is recommended to have 16 GB of RAMAnd if you're going to play games or work with demanding applications (video editing, 3D design, virtual machines, etc.), the ideal thing is... 32 GB of RAMWhen the system runs out of resources, Windows starts to rely more heavily on the disk paging file, resulting in more lag and occasional crashes when opening multiple programs or games simultaneously.

We must also take into account the current context: the DRAM memory has become more expensive And in many cases, a RAM kit costs several times more than usual. That's why it's worth spending some time optimizing the system and tweaking processes before deciding to upgrade the physical memory.

It is also worth remembering that Windows is designed to use RAM aggressively.It reserves memory and dynamically manages it to have what it thinks you'll need readily available. Seeing a lot of RAM "used" isn't necessarily bad; the problem arises when there's no more free space for what you're doing and the system starts to stutter.

Disable programs that load at startup

One of the usual areas of consumption are the applications that launch automatically when you turn on your PCMany programs are configured to start with Windows without asking for permission, which slows down startup and keeps processes running in memory that you may hardly ever use.

In Windows 11 you can manage it in two ways. The most direct is to do it from the system itself:

• Press the Windows key and type "Startup applications"; opens the first result.
• You'll see a list of apps that can start with Windows; you can sort them by impact on performance to see which ones are the most annoying.
• Disable anything you don't need to start automatically from the checkbox on the right. The program will still be installed and you can open it whenever you want, but it won't load automatically when you turn on your computer.

The second classic way is to use the Task Manager:

• Balance Ctrl + Shift + Esc To open it, or search for it in the start menu.
• Go to the tab Home.
• Review the list, right-click on each program you don't want to launch at startup, and select "Disable".

Limiting these startup programs not only reduces the RAM usage at startupAlso accelerates the overall system startup and avoid having half a dozen icons next to the clock sucking up resources without contributing anything.

Close background apps and processes you don't need

Beyond the startup, Windows 11 maintains a good handful of background applications and processesSome are necessary for everything to work properly, but others are remnants of programs you thought were closed or services that don't contribute anything to your daily life.

To limit which apps can run in the background, go to system settings:

• Press the Windows key and type "Settings".
• Sign in Apps > Installed Apps.
• In certain apps you'll see a three-dot button; tap it and enter Advanced.
• Inside, in "Background app permissions", you can choose that app Do not run in the background.

If you want to free up memory all at once by closing what's already running, you'll need to use the Task Manager:

• Open the Task Manager (Ctrl + Alt + Delete or Ctrl + Shift + Esc).
• In the Processes You'll see both the apps in the foreground and the processes running in the background.
• Click on the header of the "Memory" column to sort them by RAM usage.
• Right-click on what you want to close and choose "End task".

Be careful what you close: some strangely named processes are actually critical system servicesIf you're unsure what it is, it's best to leave it alone or look it up online first. Focus on browsers, game launchers, editing applications, messaging clients, etc., that you see consuming excessive resources and that you know you don't need at that moment.

The browser: tabs, extensions, and changes that save a lot of RAM

The modern browser has become the program where we spend the most time… and also one of the biggest memory hogs in the system. ChromeFor example, it can easily overcome 1,4 GB of RAM with 6-8 tabs openwhile better optimized browsers like Microsoft Edge They can stay below 700 MB with a similar load.

That means simply switching from Chrome to Edge (or another lighter browser) can Reduce browser RAM usage by halfIf you usually work with many tabs open, the savings can reach 1-2 GB of memory just with this change, something very noticeable on computers with 8 GB.

In addition, there are two clear fronts you should keep an eye on:

• Excessively open eyelashesEach tab contains content, scripts, and, in many cases, regular updates. Close any tabs running in the background that you won't be using soon.
• ExtensionsThe more extensions you have installed and active, the more your browser's RAM consumption increases, and it's even worse if they are old and poorly optimized extensions.

To clean extensions in Chrome (similar process in other browsers):

• Tap on the three dots in the top right corner.
• Go to Extensions > Manage extensions.
• Completely uninstall anything you don't use, or at least deactivate the extensions you only need occasionally.

Some browsers also allow you to set a memory limit or suspend inactive tabs. On computers with limited RAM, it may be worthwhile to opt for options with a simple interface and basic functions, sacrificing frills in exchange for stability.

Restart frequently and avoid overusing sleep mode

Although it may sound like a computer scientist cliché, Restarting your PC is one of the most effective ways to clear RAM.With continued use, "zombie" processes or remnants of programs you've already closed, memory leaks from poorly designed applications, services that freeze, etc., accumulate. A complete restart erases everything loaded into RAM and only starts what you have configured to boot.

On modern computers, the restart process is relatively quick, so It's a good idea to do it from time to timeEspecially if you suddenly notice your computer is sluggish for no apparent reason. If in doubt, before you start fiddling with settings, save what you have open and restart.

It is also advisable not to overuse it. suspension function Sleep mode is a way to "turn off" your computer at the end of the day. It maintains the memory state so you can resume quickly, but this means keeping many processes in RAM. It's useful if you're only going to leave your PC for a short time, but if you're going to be away for hours or days, it's better to shut it down completely.

Related to this is the Windows Quick StartThis is a function designed to speed up startup by loading previous information from disk. The problem is that, in practice, it leaves a situation very similar to sleep mode, with inherited processes running. If you want to "truly" shut down the computer:

• In the Windows search bar, type "Edit energy plan" And enter.
• On the side, it enters «Choose what the power buttons do».
• Click on "Change settings that are currently unavailable" and uncheck «Enable fast startup».

Uninstall programs you don't use and unnecessary services

There are programs that, even if they close, They start up again on their own. Because they leave scheduled services and tasks running on the system. In the long run, this results in a constant drain on RAM and CPU usage, and if you barely use them, it makes sense to remove them.

In Windows 11 you can uninstall applications from:

• Settings > Apps > Installed Appsby clicking on the three dots and choosing "Uninstall".
• Or from the classic Control Panel > Uninstall a programby right-clicking on the software in question.

To go a step further and cut processes off at the root, you can review the system services:

• Press Windows + R, type msconfig and press Enter.
• Go to the tab Services.
• Check the box "Hide all Microsoft services" so as not to touch anything critical to the system.
• Uncheck program services you don't use (for example, "Adobe Acrobat Update Service" if you don't want it to update automatically).

When applying the changes, the system will ask you ReiniciarFrom that moment on, those services will stop loading, freeing up some RAM and CPU. However, only disable what you know for sure you don't need on a daily basis.

Optimize visual effects and use software well-suited to Windows 11

Windows 11 comes loaded with animations, transparencies and visual effects While these features look very attractive, they consume memory and some processing power. On basic computers, omitting these flourishes helps everything run much more smoothly.

To adjust visual effects:

• Press Windows + R, type sysdm.cpl and press Enter.
• In the System Properties window, go to the tab Advanced.
• In the Performance section, click on Configuration.
• Brand “Tune for best performance” To disable all animations, or use "Customize" to remove only what you don't want.

It's also not a good idea to remain tied to legacy programs designed for outdated versions of WindowsOlder versions of browsers or office suites (like Office from more than a decade ago) do not take advantage of modern Windows memory management improvements and can unnecessarily increase resource consumption.

Whenever possible, opt for Updated and optimized applications for Windows 10/11The same goes for antivirus software: Microsoft Defender comes integrated, is very well tuned, and its impact on RAM and CPU is usually less than that of many third-party antivirus programs loaded with extras.

Control SysMain/Superfetch, defragment and check the disk

Another component to monitor is the service sysmain (formerly Superfetch), which attempts to predict which programs you'll use and preload them into memory. On computers with limited RAM or slow hard drives, it can do more harm than good.

To disable it:

• Press Windows + R, type services.msc and press Enter.
• Search the service sysmain.
• Right-click, enter Properties, click on "Stop" and under "Startup type" choose "Disabled".

Additionally, it's important that the disk hosting Windows is in good condition and optimized. Although defragmentation affects the disk and not directly RAM, a highly fragmented disk can make the system look clunky when it pulls from the page file.

To defragment and optimize:

• Seeks "Defragment and optimize drives» in the start menu.
• Select the system drive (usually C:) and press on "Optimize".

And while you're at it, it's worth checking if the disc has file system errorsYou can use the built-in checker (chkdsk) or third-party solutions such as EaseUS Partition Master or Defragglerwhich, in addition to fixing errors, help manage partitions and keep the disk in good condition, which indirectly results in better overall system performance.

Adjust virtual memory, paging file, and perform shutdown cleanup

When physical RAM is full, Windows uses part of the disk as virtual memory through the page file. Adjusting this parameter properly can alleviate symptoms when you're running low on memory, although it will always be much slower than having real RAM.

To configure virtual memory in Windows 11:

• Right click on This team and go to "Properties".
• Press on Advanced System Settings.
• On the Advanced tab, in the Performance section, press Configuration.
• Go back to Advanced and under "Virtual Memory" press Change.
• Uncheck «Automatically manage paging file size for all units."
• Select the system drive and choose "No paging file" if you want to move it to another drive, or set a custom size (For reference, double your physical RAM is usually a good starting point).

Another advanced trick is to force Windows to empty the paging file on shutdownThis helps prevent the accumulation of residual data from previous sessions. To do this:

• Press Windows + R, type regedit and open the Registry Editor.
• Navigate to: HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Control \ Session Manager \ Memory Management.
• Locate the value ClearPageFileAtShutdownDouble-click and change the value from 0 to 1.

The next time you shut down, Windows will take a little longer, but will clear the page fileYou won't gain RAM as such, but you may notice smoother startup times and fewer residual files from previous sessions.

Check the actual condition of your RAM: errors, capacity, and frequency

Sometimes the problem isn't that you lack RAM, but that it is not working as it shouldA module that has stopped being detected, stability problems, or your memory working at a lower frequency than it supports because you haven't enabled XMP/EXPO can explain poor performance.

To get a quick idea of ​​the situation:

• Right-click on This PC > Properties to view How much RAM does Windows detect?.
• Open Task Manager and go to the tab Performance > Memory to check capacity, type (DDR4/DDR5), speed and number of slots used.

If, for example, your PC has 32 GB installed but Windows only sees 16, or if you have fast modules running at very low frequencies, you have room for improvement without buying anything: check the modules on the motherboard, consult the BIOS/UEFI, and enable the XMP (Intel) or EXPO (AMD) profile Suitable if your motherboard supports it.

When memory starts to fail, you don't always get immediate blue screens: sometimes you'll simply notice that the system runs out of memory prematurely Or that applications that previously ran smoothly now crash. In these cases, it's advisable to run a memory test (such as Windows Memory Diagnostic or MemTest86) and physically check that all the modules are properly seated.

Avoid malware and excessive antivirus software

El malicious software It can also wreak havoc on RAM and CPU usage, as many types of malware run in the background analyzing everything you do, mining cryptocurrencies, or using your connection for nefarious purposes.

Although Microsoft Defender offers very decent protection and is well integrated with Windows 11, it doesn't hurt to launch a full scan with another antivirus solution (even in a trial version) if you suspect something strange is happening. The goal is to ensure there are no hidden processes hogging your resources.

However, it's not a good idea to have several resident antivirus programs Running two antivirus programs simultaneously, including Defensor and another antivirus scanning in real time, can lead to conflicts over files and a spike in RAM and CPU usage. If you plan to use a third-party solution continuously, disable the real-time protection of the other to avoid duplication.

Don't trust magical “RAM optimizers”

Although there are a lot of programs that promise Free up memory and speed up Windows With a single click, in modern systems like Windows 10 and 11, its usefulness is highly questionable. Most simply force Windows to dump data from RAM to the page file, resulting in more disk accesses and, ultimately, a slower system.

These types of tools can only make sense in very old computers with very little memory and outdated systems. In a current Windows 11, the system itself already manages memory quite intelligently, automatically freeing it up when necessary to prioritize what's in the foreground.

If your goal is to make your PC run more smoothly, it's best to invest time in Adjust startup, processes, services, browser, visual effects, and virtual memory than installing yet another program that will run in the background and likely consume the very resources you're trying to save. If you opt for legitimate cleaning tools, consider using Wise Disk Cleaner instead of so-called magic optimizers.

When is the right time to physically upgrade RAM?

There comes a point where, no matter how much you optimize, the physical amount of RAM falls short For what you're doing. If after applying all these adjustments you continue to encounter low memory warnings, crashes when opening modern games, or an inability to work comfortably with several heavy applications open, it's time to consider upgrading.

Today's reference values ​​would be:

• 4 GBClearly insufficient for Windows 11 except for very basic uses. An upgrade is almost mandatory.
• 8 GB: acceptable for office work and light browsing, but just right for serious multitasking and modern games.
• 16 GB: balanced point for most users, gaming and moderate multitasking.
• 32 GB or moreRecommended for video editing, 3D, virtual machines, very heavy projects, and particularly resource-intensive games.

Before buying anything, check:

• TO memory type Supports your motherboard (DDR4, DDR5), maximum speed and total supported capacity.
• How many slots Do you have them and how many are free?
• What modules do you have now (e.g., 2 x 4 GB, 2 x 8 GB, etc.).

For example, if you have 8 GB of RAM spread across two 4 GB modules and you have two free slots, you could add another two 4 GB modules to reach 16 GB. If your motherboard only has two slots already occupied by 4 GB modules, you'll have no choice but to replace them with 8 GB modules to reach the desired 16 GB.

Even though RAM is expensive right now, if your usual usage pushes Windows 11 to its limits, double the total amount of memory It is usually the hardware change that makes the most difference in day-to-day use, even more so than small processor upgrades, provided you already have a reasonably fast SSD.

In short, if Windows 11 is giving you trouble with excessive RAM usage, you have a good arsenal of adjustments at your disposal: reduce startup programs, close and limit background processes, optimize your browser, uninstall unnecessary software, adjust visual effects, review SysMain and virtual memory, keep your system free of malware, and, when all else fails, seriously consider upgrading your physical memory. With a sensible combination of these measures, it's easy to squeeze out several gigabytes of RAM and ensure your PC lasts a few more years without needing a complete overhaul.