If your Windows 11 is using around 40% memory at idle (with no apps open) due to background services, here’s how to fix or reduce it safely

🧠 Step 1: Check What’s Using RAM

1. Press Ctrl + Shift + Esc → open Task Manager.


2. Go to the Processes tab.


3. Sort by Memory to see which services or apps use the most RAM.


4. If you see background processes like:

SysMain (Superfetch)

Windows Search

Windows Defender

Teams, OneDrive, or Widgets — these can be optimized or disabled safely.


⚙️ Step 2: Disable Unnecessary Startup Apps

1. Open Task Manager → Startup Apps tab.


2. Disable any non-essential apps (like Spotify, Teams, Discord, Adobe, etc.).


3. Reboot your PC.

🧩 Step 3: Turn Off Unneeded Background Services
Press Win + R, type services.msc, and press Enter.
Look for these services and set them to “Manual” or “Disabled” (only if you don’t use them):
SysMain
Windows Search (if you rarely use search)
Connected User Experiences and Telemetry
Fax
Print Spooler (if no printer)
Windows Update Medic Service (keep normal Windows Update on manual instead)

🔒 Step 4: Check for Memory Leaks or Defender Issues

1. Open Windows Security → Virus & threat protection → Settings → Manage settings.


2. Temporarily disable Real-time protection (to test if Defender is hogging RAM).


3. If memory drops significantly, consider installing a lighter antivirus like Bitdefender Free or Kaspersky Free.

🚀 Step 5: Adjust for Best Performance

1. Right-click This PC → Properties → Advanced system settings.


2. Under Performance, click Settings.


3. Choose Adjust for best performance (or manually disable animations).


4. Apply and restart.

💾 Step 6: Check for Malware or Bloatware

Run a scan using:

Malwarebytes Free

AdwCleaner


This can remove hidden background programs that cause memory spikes.




🧰 Optional Advanced Fixes

Disable Windows Widgets (Settings → Personalization → Taskbar → Widgets → Off)

Disable OneDrive auto start (Right-click OneDrive icon → Settings → Uncheck “Start with Windows”)

Use Autoruns (by Microsoft Sysinternals) to manage hidden background tasks.

Update BIOS and drivers from your laptop/PC manufacturer.





✅ Typical Results:

After doing all this, your idle memory usage should drop from 40% → around 20–25% depending on total RAM (for example, ~3–4 GB on 16 GB system).

below are two ready-to-run .BAT scripts:

1. memory_tweak.bat — safely reduces common background memory usage (stops certain services, prevents some apps from auto-starting, hides Widgets, kills common RAM-heavy background apps).


2. memory_revert.bat — attempts to put those services back to their usual automatic start behavior and re-start them, and re-enables Widgets.



Important (read first)

Run these as Administrator (right-click → Run as administrator).

I recommend creating a System Restore point manually before running (Start → type “Create a restore point” → System Protection → Create). The script will try to create one but it can fail if system protection is off.

These scripts are conservative — they set a few services to manual rather than fully disabled so Windows functionality stays safe. If you rely on a printer, game saving, or telemetry features, the revert script will restore things.

If something looks off afterwards, run the revert script as admin to restore defaults and then reboot.

1) memory_tweak.bat

Save the code below into a file named memory_tweak.bat and run as administrator.

@echo off
:: memory_tweak.bat
:: Run as Administrator

:: — Admin check —
openfiles >nul 2>&1
if %errorlevel% NEQ 0 (
echo This script requires Administrator privileges.
echo Right-click the file and choose “Run as administrator”.
pause
exit /b 1
)

echo.
echo Creating a System Restore Point (may fail if System Protection is disabled)…
powershell -Command “if ((Get-ComputerRestorePoint -ErrorAction SilentlyContinue) -ne $null) {Checkpoint-Computer -Description ‘BeforeMemoryTweaks’ -RestorePointType ‘MODIFY_SETTINGS’}” 2>nul

echo.
echo Stopping and setting certain services to manual (safer than disabled)…
:: SysMain (formerly Superfetch) – can use lots of memory on some systems
sc config “SysMain” start= demand
net stop “SysMain” >nul 2>&1

:: Windows Search – indexing can use RAM
sc config “WSearch” start= demand
net stop “WSearch” >nul 2>&1

:: Connected User Experiences and Telemetry (diagnostics) – optional telemetry that can run in background
sc config “DiagTrack” start= demand
net stop “DiagTrack” >nul 2>&1

:: Print Spooler -> set to manual (if you use printer, Windows will start it when needed)
sc config “Spooler” start= demand
net stop “Spooler” >nul 2>&1

:: (Do NOT disable critical update services here)
echo Services updated.

echo.
echo Disabling Widgets on taskbar for current user…
:: Hides the Widgets (ShellFeedsTaskbar = 0)
reg add “HKCU\Software\Microsoft\Windows\CurrentVersion\Feeds” /v “ShellFeedsTaskbar” /t REG_DWORD /d 0 /f >nul 2>&1

echo.
echo Stopping common background apps (OneDrive, Teams, Spotify, Discord, etc.) and removing their current Run startup entries (current user).
taskkill /im OneDrive.exe /f >nul 2>&1
taskkill /im Teams.exe /f >nul 2>&1
taskkill /im Spotify.exe /f >nul 2>&1
taskkill /im Discord.exe /f >nul 2>&1
taskkill /im “MicrosoftEdge.exe” /f >nul 2>&1

:: Remove common Run keys from current user (prevents auto-start next login)
reg delete “HKCU\Software\Microsoft\Windows\CurrentVersion\Run” /v “OneDrive” /f >nul 2>&1
reg delete “HKCU\Software\Microsoft\Windows\CurrentVersion\Run” /v “Teams” /f >nul 2>&1
reg delete “HKCU\Software\Microsoft\Windows\CurrentVersion\Run” /v “Spotify” /f >nul 2>&1

echo.
echo Optional: To fully uninstall OneDrive, run (as admin):
echo %SystemRoot%\SysWOW64\OneDriveSetup.exe /uninstall (on some systems use Sysnative or System32)
echo (Only do that if you don’t need OneDrive.)
echo.

echo Done. Recommended: reboot to apply all changes.
echo If you want to revert changes, run memory_revert.bat as Administrator.
pause

2) memory_revert.bat

Save as memory_revert.bat and run as administrator to restore service start modes and re-enable Widgets:

@echo off
:: memory_revert.bat
:: Run as Administrator

:: — Admin check —
openfiles >nul 2>&1
if %errorlevel% NEQ 0 (
echo This script requires Administrator privileges.
echo Right-click the file and choose “Run as administrator”.
pause
exit /b 1
)

echo Attempting to restore services to Automatic start and start them…
sc config “SysMain” start= auto
net start “SysMain” >nul 2>&1

sc config “WSearch” start= auto
net start “WSearch” >nul 2>&1

sc config “DiagTrack” start= auto
net start “DiagTrack” >nul 2>&1

sc config “Spooler” start= auto
net start “Spooler” >nul 2>&1

echo.
echo Re-enabling Widgets on taskbar for current user…
reg add “HKCU\Software\Microsoft\Windows\CurrentVersion\Feeds” /v “ShellFeedsTaskbar” /t REG_DWORD /d 1 /f >nul 2>&1

echo.
echo NOTE: Startup entries for OneDrive/Teams/Spotify were removed by the tweak script.
echo If you want those apps to autostart again, re-enable them from each app’s Settings or reinstall the app.
echo Done. Recommended: reboot now.
pause

Short explanation of what these commands do

Set SysMain and Windows Search (WSearch) to manual and stop them: both can use RAM for prefetching/indexing. Manual start lets Windows start them when needed.

Set DiagTrack (telemetry) to manual and stop it — reduces background telemetry tasks.

Set Spooler to manual (printer service) to avoid it running if you’re not printing.

Change Widgets setting in registry to hide the Widgets panel (low-risk).

Kill and remove Run entries for common user-level apps (OneDrive, Teams, Spotify, Discord) so they don’t auto-start and consume RAM. You can re-enable them later from each app’s settings.

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