How to Fix "Your Computer Is Low on Memory" in Windows 11, 10, 8 & 7 (Complete Guide)
In this complete troubleshooting guide, you will learn how to fix low memory problems in Windows 11, Windows 10, Windows 8, and Windows 7 using simple and effective solutions.
📌 In This Guide
- What does "Your Computer Is Low on Memory" mean?
- RAM vs Virtual Memory explained
- Signs your PC is running out of memory
- Main causes of low memory problems
- 12 proven ways to fix low memory on Windows
- How to prevent memory problems
- Frequently asked questions
📑 Table of Contents
What Does "Your Computer Is Low on Memory" Mean?
Every program you open uses a portion of your computer's memory. Web browsers, games, office applications, video editing software, and background services all require RAM.
When RAM becomes full, Windows tries to move some inactive data from RAM to a special storage area called the paging file. This process is called virtual memory.
Virtual memory helps Windows continue working, but it is much slower than physical RAM. This is why your computer may become slow, freeze, or take longer to respond.
If your computer frequently shows low memory warnings, check your RAM usage in Task Manager → Processes → Memory to find which programs are using the most resources.
RAM vs Virtual Memory: Understanding Computer Memory
What Is RAM?
RAM stands for Random Access Memory. It is temporary storage used by Windows and programs while your computer is running.
Unlike a hard drive or SSD, RAM is extremely fast. More RAM allows your computer to handle more programs at the same time without slowing down.
| Computer Usage | Recommended RAM |
|---|---|
| Basic browsing, email, and documents | 8 GB |
| Office work and multitasking | 8 GB - 16 GB |
| Gaming and creative work | 16 GB - 32 GB |
| Video editing, 3D design, virtual machines | 32 GB or more |
What Is Virtual Memory?
Virtual memory is a Windows feature that uses part of your hard drive or SSD as additional memory when physical RAM becomes full.
Windows stores temporary memory data in a hidden system file called pagefile.sys.
Although virtual memory prevents programs from immediately closing, it is much slower than RAM because storage devices cannot match RAM speed.
RAM = Your working desk
Virtual Memory = A storage cabinet
Working directly on your desk is faster than constantly searching through a cabinet.
Signs Your Computer Is Running Low on Memory
A computer with insufficient memory usually shows several warning signs.
- Slow computer performance: Programs take longer to open.
- Freezing applications: Software becomes unresponsive.
- Browser crashes: Chrome, Edge, or Firefox tabs close unexpectedly.
- Slow gaming performance: Games may lag or freeze.
- High RAM usage: Task Manager shows memory usage close to 100%.
- Windows warnings: You receive low memory notifications.
- Unexpected program closing: Windows closes applications to free resources.
Common Causes of Low Memory Problems
1. Too Many Programs Running
Running many applications at the same time can quickly use all available RAM.
For example:
- Web browser with many tabs
- Photoshop
- Video editing software
- Games
- Microsoft Office
- Communication apps
2. Too Many Startup Applications
Many programs automatically start when Windows boots. These applications continue running in the background and consume memory.
Common examples include:
- Microsoft Teams
- Discord
- Spotify
- Steam
- Adobe Creative Cloud
- OneDrive
3. Memory-Hungry Programs
Some applications require large amounts of RAM, including:
- Video editing programs
- 3D design software
- Modern games
- Virtual machines
- Professional editing tools
4. Too Many Browser Tabs
Browsers can consume a large amount of memory, especially when many tabs and extensions are open.
5. Malware or Viruses
Malware can run hidden processes that use RAM and CPU resources, causing slow performance and memory problems.
6. Memory Leaks
Some applications fail to release memory after use. Over time, this reduces available RAM and may cause system instability.
7. Corrupted Windows Files
Damaged system files can affect Windows memory management and create performance issues.
8. Incorrect Virtual Memory Settings
A disabled or incorrectly configured paging file can cause Windows to run out of available memory.
9. Outdated Windows or Drivers
Old Windows versions and drivers may contain bugs that affect memory usage.
10. Not Enough Physical RAM
If your computer regularly runs out of memory during normal tasks, you may need a RAM upgrade.
How to Fix Low Memory on Windows 11, Windows 10, Windows 8 & Windows 7
Now that you understand the causes of low memory problems, let's look at the most effective solutions. Follow these methods one by one until your computer works normally again.
Fix 1: Disable Unnecessary Startup Programs
Disabling unnecessary startup programs can:
- Reduce RAM usage
- Improve Windows startup speed
- Reduce background activity
- Improve overall computer performance
How to Disable Startup Programs in Windows 11 and Windows 10
- Press Ctrl + Shift + Esc to open Task Manager.
- Click Startup apps from the left menu.
- Review the list of programs that start with Windows.
- Right-click unnecessary programs.
- Select Disable.
Examples of applications that are usually safe to disable:
- Spotify
- Discord
- Steam
- Adobe Creative Cloud
- Microsoft Teams (if not required)
Do not disable Windows services, antivirus software, graphics drivers, or hardware-related programs unless you know their purpose.
Fix 2: Close Programs Using Too Much Memory
Check Memory Usage in Task Manager
- Press Ctrl + Shift + Esc.
- Open the Processes tab.
- Click the Memory column.
- Programs using the highest amount of RAM will appear at the top.
If you find a program using too much memory and you are not using it:
- Right-click the program.
- Select End task.
- Google Chrome
- Microsoft Edge
- Adobe Photoshop
- Video editors
- Games
- Virtual machines
Reduce Browser Memory Usage
Web browsers are one of the biggest causes of high RAM usage. Try these simple tips:
- Close unused browser tabs.
- Remove unnecessary browser extensions.
- Restart your browser regularly.
- Use browser memory-saving features.
Fix 3: Scan and Remove Malware or Viruses
Malware infections can silently consume your computer's memory. Some malicious programs run continuously in the background and use RAM, CPU, and internet resources.
Signs of malware-related memory problems include:
- Unknown programs running in Task Manager
- High RAM usage without opened applications
- Unexpected pop-ups
- Very slow computer performance
- Frequent crashes
Run Windows Security Virus Scan
- Click the Start button.
- Search for Windows Security.
- Open Virus & threat protection.
- Click Scan options.
- Select Full scan.
- Click Scan now.
Use Microsoft Defender Offline Scan
If malware is difficult to remove while Windows is running, use Offline Scan.
- Open Windows Security.
- Select Virus & threat protection.
- Click Scan options.
- Choose Microsoft Defender Offline scan.
- Click Scan now.
Fix 4: Run Windows System Maintenance
Windows includes a built-in maintenance tool that can automatically detect and fix common system problems.
Steps to Run System Maintenance
- Open Control Panel.
- Search for Troubleshooting.
- Click Troubleshooting.
- Select View all.
- Choose System Maintenance.
- Click Next.
- Allow Windows to complete the repair process.
Fix 5: Repair Windows System Files Using SFC and DISM
- SFC (System File Checker) repairs damaged Windows system files.
- DISM repairs the Windows system image.
Run System File Checker (SFC)
- Search for Command Prompt.
- Right-click and select Run as administrator.
- Type the following command:
sfc /scannow
Press Enter and wait until the scan reaches 100%.
If Windows finds corrupted files, it will automatically repair them. Restart your computer after the process finishes.
Run DISM Repair Tool
If SFC cannot repair all problems, use DISM.
Open Command Prompt as administrator and type:
DISM /Online /Cleanup-Image /RestoreHealth
Press Enter and wait for the process to complete. This may take several minutes depending on your computer speed.
After DISM finishes, run SFC again:
sfc /scannow
These tools repair Windows files responsible for system stability, including files that manage memory usage.
Fix 6: Check Hard Drive Errors Using CHKDSK
Run CHKDSK Command
- Right-click the Start button.
- Choose Windows Terminal (Admin) or Command Prompt (Admin).
- Type the following command:
chkdsk C: /f /r
Press Enter.
If Windows asks to schedule the scan after restarting, type:
Y
Restart your computer and allow Windows to complete the scan.
What Do CHKDSK Commands Mean?
| Command | Purpose |
|---|---|
| /f | Fixes file system errors |
| /r | Finds bad sectors and attempts data recovery |
CHKDSK can take a long time, especially on large hard drives. Do not turn off your computer during the scan.
Fix 7: Run Windows Memory Diagnostic to Check RAM Problems
Windows includes a built-in tool called Windows Memory Diagnostic that can test your RAM and check for hardware-related memory problems.
How to Run Windows Memory Diagnostic
- Press the Windows logo key + R to open the Run dialog box.
- Type mdsched and press Enter
- Select Restart now and check for problems.
- Your computer will restart and automatically begin checking RAM.
- Wait until the test completes.
After Windows starts again, the test results will appear. If errors are detected, your RAM may need to be reseated or replaced.
If your computer has multiple RAM sticks, test each module separately to identify which one is causing the problem.
Fix 8: Increase Virtual Memory (Paging File Size)
Increase Virtual Memory in Windows
- Press Windows + S.
- Search for View advanced system settings.
- Open the System Properties window.
- Click the Advanced tab.
- Under Performance, click Settings.
- Select the Advanced tab again.
- Under Virtual Memory, click Change.
- Uncheck: Automatically manage paging file size for all drives.
- Select Custom size.
- Enter the recommended values.
- Click OK and restart your computer.
| Installed RAM | Recommended Initial Size | Maximum Size |
|---|---|---|
| 4 GB | 4096 MB | 8192 MB |
| 8 GB | 8192 MB | 16384 MB |
| 16 GB | 16384 MB | 32768 MB |
Virtual memory improves stability, but it cannot replace physical RAM. If your computer constantly runs out of memory, upgrading RAM is the better solution.
Fix 9: Free Up Storage Space
Windows needs free storage space to create and manage virtual memory. A nearly full hard drive or SSD can reduce performance and cause memory-related issues.
Delete Unnecessary Files
- Open Settings.
- Go to System → Storage.
- Review temporary files and unused data.
- Remove files you no longer need.
You can safely remove:
- Temporary files
- Windows update cleanup files
- Recycle Bin contents
- Unused applications
- Old downloads
Enable Storage Sense
Windows Storage Sense automatically removes unnecessary temporary files and helps maintain free disk space.
Enable it from:
Settings → System → Storage → Storage Sense
Fix 10: Update Windows and Device Drivers
Microsoft regularly releases updates that improve Windows performance, security, and memory management.
Outdated drivers can also cause memory leaks and system instability.
Update Windows
- Open Settings.
- Select Windows Update.
- Click Check for updates.
- Download and install available updates.
- Restart your computer.
Update Important Drivers
Keep these drivers updated:
- Graphics driver
- Chipset driver
- Storage controller driver
- Network driver
Fix 11: Upgrade Your Computer RAM
A RAM upgrade can improve:
- Multitasking performance
- Gaming performance
- Application loading speed
- Overall system responsiveness
How Much RAM Do You Need?
| User Type | Recommended RAM |
|---|---|
| Basic users | 8 GB |
| Office and multitasking | 16 GB |
| Gaming users | 16 GB - 32 GB |
| Video editing and professional work | 32 GB or more |
Check RAM Compatibility Before Buying
Before upgrading memory, check:
- Supported DDR generation (DDR3, DDR4, DDR5)
- Maximum supported RAM capacity
- Number of available RAM slots
- RAM speed supported by your motherboard
- Desktop DIMM or laptop SO-DIMM type
DDR4 RAM cannot be installed in a motherboard designed only for DDR3 or DDR5. Always check your device specifications before purchasing RAM.
Fix 12: Restart Your Computer Regularly
Many users leave their computers running for weeks without restarting. Over time, background processes and memory leaks can reduce available RAM.
Restarting your PC:
- Clears temporary memory
- Closes hidden background processes
- Restarts Windows services
- Improves system stability
If your computer becomes slow after several days of use, a simple restart may solve the problem.
How to Prevent Low Memory Problems in the Future
Preventing memory problems is easier than fixing them. Follow these tips to keep your computer running smoothly.
- Keep Windows updated.
- Install enough RAM for your daily workload.
- Close programs you are not using.
- Avoid keeping too many browser tabs open.
- Remove unnecessary startup applications.
- Perform regular malware scans.
- Keep your hard drive or SSD storage space free.
- Update device drivers regularly.
- Clean temporary files monthly.
- Restart your computer regularly.
Quick Summary: Best Fixes for Low Memory Error
| Problem | Solution |
|---|---|
| Too many background programs | Disable unnecessary startup apps |
| High RAM usage | Close memory-heavy applications |
| Malware infection | Run antivirus scan |
| Corrupted Windows files | Run SFC and DISM |
| RAM errors | Use Windows Memory Diagnostic |
| Not enough memory | Upgrade RAM |
Frequently Asked Questions (FAQ)
1. Why does my computer say "Your computer is low on memory"?
This message appears when Windows does not have enough available RAM to run all active programs. It usually happens because too many applications are running, background programs are using memory, or your computer does not have enough RAM for your workload.
2. How do I check what is using my computer memory?
You can check memory usage using Windows Task Manager. Press Ctrl + Shift + Esc, open the Processes tab, and click the Memory column to see which programs are using the most RAM.
3. Can low memory make my computer slow?
Yes. When RAM becomes full, Windows uses virtual memory from your hard drive or SSD. Because storage is slower than RAM, your computer may become slow, freeze, or stop responding.
4. How much RAM does my computer need?
For most users, 8GB of RAM is enough for basic tasks. For gaming, multitasking, and professional applications, 16GB or more is recommended.
5. Does restarting a computer clear RAM?
Yes. Restarting your computer closes running programs and clears temporary memory usage. It can fix many temporary low memory problems.
6. Can viruses cause low memory problems?
Yes. Malware can run hidden processes that consume RAM and CPU resources. Running a full antivirus scan can help detect and remove malicious software.
7. Is increasing virtual memory safe?
Yes. Increasing virtual memory is a safe Windows feature. However, it should not replace upgrading physical RAM if your computer regularly runs out of memory.
8. Why does Google Chrome use so much memory?
Chrome uses separate processes for tabs, extensions, and background services. Having many tabs open can consume several gigabytes of RAM.
9. Can faulty RAM cause low memory errors?
Yes. Damaged RAM modules can cause crashes, freezes, blue screen errors, and incorrect memory warnings. Use Windows Memory Diagnostic to test your RAM.
10. Will adding more RAM make my computer faster?
If your computer frequently runs out of memory, adding more RAM can significantly improve multitasking performance and reduce slowdowns.
11. Should I disable all startup programs?
No. Disable only unnecessary programs. Keep important Windows services, security software, and hardware drivers enabled.
12. Can an SSD fix low memory problems?
An SSD does not increase RAM, but it makes virtual memory operations faster. Upgrading from a hard drive to an SSD can improve overall system performance.
Final Thoughts
The "Your computer is low on memory" warning is a common Windows problem, but it does not always mean you need a new computer.
In most cases, you can solve the issue by closing unnecessary applications, disabling startup programs, removing malware, repairing Windows files, and adjusting virtual memory settings.
If your computer still struggles after optimization, upgrading your RAM is the best long-term solution. More memory allows Windows to handle modern applications, games, and multitasking more efficiently.
Regular maintenance, Windows updates, malware protection, and keeping enough free storage space will help your computer remain fast and reliable for years.
For the best Windows performance:
- Use at least 8GB RAM for normal tasks.
- Use 16GB RAM for smooth multitasking.
- Keep Windows updated.
- Remove unnecessary startup programs.
- Maintain free storage space.
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