Is Your PC Slow Because of Low RAM? 7 Simple Fixes You Can Do Today

Key Takeaways:-

• Low or overloaded RAM can cause your Windows PC to freeze or run slowly, especially during multitasking.
• You can manage RAM better with simple methods, such as closing unnecessary apps and disabling startup programs.
• Check RAM usage via Task Manager to confirm if low RAM is the issue, focusing on the Performance tab.
• Follow these steps to free up RAM: restart your PC, close tabs in browsers, and reduce visual effects.
• Consider upgrading your RAM if you experience consistent high memory usage or perform heavy tasks.

Does your Windows PC freeze during basic tasks, or take forever to open apps or browse the internet for no obvious reason? This issue usually points to low or overloaded RAM (Random Access Memory). Usually, RAM acts as temporary, high-speed storage for data that the CPU needs immediately. Sufficient RAM allows more tasks to run simultaneously without slowing down, low memory (RAM) forces the operating system to use the storage drive (HDD/SSD) as temporary memory, which is significantly slower than RAM. And it results in slower loading, takes forever to open programs, and stuttering when multitasking. Well, not every slow PC means you need more RAM. Sometimes, you just need to manage it better. In this article, we look 7 simple, safe ways to free up RAM on Windows 10 and Windows 11.

What Is RAM and Why Does It Affect PC Speed?

Kingston describes Computer memory, or RAM (Random Access Memory), as a type of fast, temporary memory your computer uses to keep apps and data ready while you work. Whenever you:

• Open Chrome, Edge, or another browser
• Run games or editing software
• Use apps like Zoom, Teams, or Office
• Keep many tabs and programs open at the same time

…your computer stores active data in RAM so it can access it quickly.

What happens when RAM is almost full?

When your RAM hits maximum capacity:

1. Your PC can’t store new information in fast RAM
2. It starts using “virtual memory“ (your hard drive, which is much slower)
3. Everything slows down because your PC is constantly swapping data between RAM and your hard drive
4. Apps freeze, crash, or act sluggish because they’re waiting for data

Example: If you have 8GB of RAM and you’re already using 7.8GB, opening another tab or app will cause noticeable lag or freezing.

More RAM = Smoother Multitasking

• 4GB RAM: Works for simple tasks (email, web browsing) but struggles with multiple apps
• 8GB RAM: The sweet spot for most people (what we recommend)
• 16GB+ RAM: For heavy tasks like video editing, programming, or gaming
• 32GB+ RAM: For professional workstations

Signs Your PC Is Slow Because of Low RAM

Not every slow computer is a RAM problem. But if you notice these signs, RAM is likely the culprit.

1. System Freezing

• You click a button and wait 5+ seconds for a response
• Multiple freezes throughout the day
• Even simple tasks like opening File Explorer feel delayed

2. High Memory Usage (90%+)

• Task Manager shows memory constantly maxed out
• Usage stays high even when you close apps
• This is the clearest sign

3. Browser Tabs Crash

• Chrome or Firefox tabs suddenly close or become unresponsive
• Websites take forever to load
• Even 10-15 tabs become unusable

4. Slow Multitasking

• You can’t smoothly switch between apps
• Opening a new program while another is running causes lag
• Video calls become choppy when other apps are running

5. Hard Drive Light Constantly On

• You hear constant disk activity even when you’re not doing anything
• This means your PC is using virtual memory heavily

How to Check RAM Usage in Windows 11

Before you fix anything, let’s confirm RAM is the problem.

Step 1: Press Ctrl + Shift + Esc to open Task Manager directly (Or: Right-click taskbar → Task Manager)

Step 2: Click the “Performance” tab at the top

Step 3: Select “Memory” on the left sidebar

You’ll see a graph with real-time memory usage. Here’s what to look for:

• Top number = Total RAM installed (e.g., “16 GB”)
• Blue line = How much you’re currently using
• Graph = Memory usage over time

What it means:

• If the blue line is constantly near the top → RAM bottleneck confirmed
• If it spikes only when you open apps, then drops → This is normal
• If it stays high even when idle → Background apps are the problem

How to Free Up RAM on Windows 11

To quickly free up RAM on Windows 11, close unnecessary applications, disable startup apps in Task Manager, and restart your computer to clear temporary files. Here are 7 Easy Ways to Free Up RAM on Windows 10 and Windows 11.

Close Programs You’re Not Actively Using

The fastest way to free up RAM on your computer is to close apps and windows you don’t really need at the moment. Every app running in the background uses RAM, even if you can’t see it. Prevent Unnecessary ones from running allow required apps run smoothly.

1. Open Task Manager → Processes.
2. Sort by Memory to see the biggest RAM users at the top.
3. For apps you recognize and aren’t using (for example: a game launcher, big editing software, or duplicate browser windows), right-click and choose End task.

Important:

• Don’t end tasks you don’t recognize, especially if they’re labeled as Windows processes.
• Focus on clearly named apps you opened yourself.

Quick wins:

• Close extra instances of browsers and heavy apps
• Close background apps like Spotify, Discord, or unused Office documents

Disable Startup Programs (Prevents RAM From Filling Up on Boot)

Some apps are set to run automatically when you start your PC. This startup app fills up RAM before you even open anything and slow down PC performance.

• Open Task Manager (Ctrl + Shift + Esc)
• Go to the Startup apps or Startup tab.
• Look at the list and check the Startup impact column.
• Right-click on any app you don’t need at startup and choose Disable.

Examples of apps you might safely disable (if you don’t rely on them):

• Game launchers (Steam, Epic, Battle.net) if you don’t game every session
• Cloud services you don’t use all the time (some backup tools, etc.)
• Chat tools you rarely use

This doesn’t uninstall the apps. It just stops them from loading automatically and eating RAM in the background.

From now on, your computer will start faster and have more RAM available for the tasks you actually want to perform.

Pro tip: If you’re not sure what an app is, right-click and choose “Search online” to see if it’s safe to disable.

Restart Your PC (The Nuclear Option That Actually Works)

Yes, “have you tried turning it off and on again?” is cliché because it actually works.

When your PC restarts, all temporary data in RAM is cleared. Sometimes apps have small memory leaks that slowly eat away at available RAM over hours or days.

• Step 1: Save all your work
• Step 2: Click Start → Power → Restart
• Step 3: Wait for your PC to fully boot up

This clears processes running in the background that you didn’t realize were consuming memory.

You will notice RAM usage drops significantly. This usually fixes freezing issues temporarily.

Reduce Browser Tabs & Uninstall Heavy Extensions

On many US PCs, the web browser is the number one RAM hog, especially Chrome and Edge with many tabs and add-ons. Each open tab uses 20-50MB of RAM, and extensions add more.

• Close tabs you’re not actively using
• Bookmark long-term pages instead of keeping them open
• Use tab sleeping features:
  • In Microsoft Edge: Settings → System and performance → enable Sleep tabs
  • In Google Chrome: Settings → Performance → enable Memory Saver
• Remove or disable extensions you rarely use (ad blockers, download helpers, etc. can add up)

Even going from 30+ tabs to fewer than 10 can dramatically reduce RAM usage.

Again corrupt browser cache also cause consumes significant RAM, especially if you browse heavily and never clear it.

• On Chrome, go to Settings, Privacy and security, and Clear browsing data.
• On Firefox, go to Settings, Privacy & Security, Cookies and Site Data, and Clear Data.
• On Safari, go to Safari, Settings, Privacy, Manage Website Data, and Remove All.

Switch to Firefox if Chrome consistently uses high RAM. Firefox is generally lighter on memory and smart at managing tabs.

Adjust Windows Visual Effects for Performance

Windows uses animation and visual effects to look smooth, but these can slightly increase RAM and CPU load, especially on older or low-RAM PCs. Switch to a more performance-focused mode this help windows run smoothly, especially effective for older PCs with 4-8GB of RAM install.

1. Press Windows key + R.
2. Type sysdm.cpl and press Enter.
3. In the System Properties window, go to the Advanced tab.
4. Under Performance, click Settings….
5. Choose Adjust for best performance (or manually uncheck effects you don’t care about).
6. Click Apply, then OK.

Your system might look a bit simpler, but many users notice smoother performance on lower-end PCs.

Scan for Malware (The Hidden RAM Thief)

Malware and viruses often run in the background, silently consuming RAM and CPU. On many systems that come into repair shops, high RAM usage is partly caused by unwanted software.

You can use the built-in option (Windows Defender) or a third-party antivirus or Malwarebytes (free version) and perform a full scan to detect malware infections.

• Go to Settings → Privacy & Security → Windows
• Click “Virus & threat protection.”
• Click “Scan options” → Select “Full scan” → “Scan now.”

Optionally, you can also:

• Run a scan with a trusted anti-malware tool (like Malwarebytes) to catch adware or PUPs (potentially unwanted programs).

Removing malware or junkware can instantly reduce background resource usage.

When You Should Consider Upgrading Your RAM

Software tweaks are great, but in many cases, the best long-term solution is to add more RAM.

You should seriously think about a RAM upgrade if:

• You frequently see 80–100% memory usage, even with only a few apps open
• Your PC has 4 GB of RAM (very limiting in 2026 for Windows 10/11)
• You do heavy tasks:
  • Gaming
  • Photo/video editing
  • Programming and development
  • Running virtual machines
• You upgraded from a hard drive to an SSD but still experience freezes with multiple programs

Things to check before buying RAM

1. Maximum RAM your system supports: Search for your PC or motherboard model + “maximum RAM” on the manufacturer’s site.
2. RAM type and speed: Check if your system uses DDR3, DDR4, or DDR5, and what speed is supported.
3. Number of RAM slots available: Some laptops have only 1 slot, some have 2 (or RAM is soldered and not upgradeable).

If you’re not comfortable checking this yourself, you can:

• Ask a local computer repair shop
• Contact the manufacturer’s support
• Use popular system information tools (like CPU-Z) to see details

For many older or budget PCs, upgrading from 4 GB → 8 GB or 8 GB → 16 GB makes a huge, noticeable difference.

RAM vs. Other Causes of Slow PC (Not Always RAM!)

High RAM usage doesn’t always explain slow performance. Your PC Might Be Slow Because Of:

1. CPU Bottleneck (Processor overloaded)

• High RAM but slow performance = CPU is working too hard
• Check Task Manager → CPU% column
• If CPU is constantly 90%+, the problem isn’t RAM

2. Hard Drive Issues

• Old HDD (Hard Disk Drive) is much slower than SSD (Solid State Drive)
• Check Task Manager → Disk% column
• If Disk usage is constantly at 100%, replace HDD with SSD (the biggest speed upgrade you can make)

3. Too Many Background Services

• Windows runs services in the background you don’t know about
• Some can be disabled safely, others shouldn’t be touched

4. Thermal Throttling (Overheating)

• PC heats up and slows down to prevent damage
• Check temperature using apps like HWiNFO
• Solution: Clean dust from vents, improve airflow

5. Outdated Drivers

• GPU, chipset, or network drivers might be old
• Update drivers through Device Manager

To identify the real problem, Open Task Manager → Performance tab and check:

• CPU%: High = CPU problem
• Memory%: High = RAM problem
• Disk%: Constantly high = Storage problem
• GPU%: High = Graphics issue

Frequently Asked Questions