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Darkssel
Darkssel

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How to Speed Up Windows 10/11 (Complete Guide)

#windows #troubleshooting #performance #sysadmin

Your PC was fast when you first bought it.

Now it feels like it's running through mud.

Programs take forever to open.

The fan spins up for no reason.

Even moving between folders feels sluggish.

You might think:

"Is my PC too old? Do I need to buy a new one?"

Probably not.

Most Windows slowdowns are caused by misconfigurations, clutter, and unnecessary background activity — not hardware age.

This guide combines everything you need to speed up Windows — from the quick wins to the advanced tweaks.

No reinstalling Windows. No buying new hardware. Just practical fixes.

Let's go.

1. Disable Unnecessary Startup Programs

This is the #1 reason PCs get slower over time.

Every app you install wants to start with Windows.

After a year, you have 20+ apps launching at boot.

Each one adds seconds to your boot time and consumes RAM and CPU.

How to fix it:

  1. Press Ctrl + Shift + Esc to open Task Manager
  2. Click the Startup tab
  3. Sort by Startup Impact (High to Low)
  4. Right-click and Disable everything you don't need immediately

What to keep:

  • Antivirus (if you use one)
  • Graphics drivers (NVIDIA, AMD, Intel)
  • Cloud sync only if you need it constantly

What to disable:

  • Spotify, Adobe, Discord, Steam, Epic Games Launcher, etc.

Pro tip: You can still open these apps manually. They just won't slow down your boot.

2. Turn Off Visual Effects

Windows looks nice — but those animations cost performance.

On older or budget PCs, disabling visual effects can make everything feel snappier.

How to do it:

  1. Press Win + R, type sysdm.cpl, press Enter
  2. Go to the Advanced tab
  3. Under Performance, click Settings
  4. Select Adjust for best performance (disables everything) or Custom (choose what to keep)

What to keep (optional):

  • Smooth edges of screen fonts
  • Show thumbnails instead of icons

What to disable (safe to turn off):

  • Animations
  • Transparency effects
  • Shadows
  • Fades and sliding menus

The difference: Your PC will feel more responsive immediately.

3. Free Up Disk Space

When your system drive (usually C:) is nearly full, Windows slows down.

It needs space for:

  • Virtual memory (pagefile)
  • Temporary files
  • System restore points
  • Caching

How to clean up:

  1. Open This PC → right-click C: → Properties → Disk Cleanup
  2. Click Clean up system files
  3. Select everything you can remove:
    • Windows Update Cleanup (often GBs)
    • Temporary files
    • Recycle Bin
    • Previous Windows installations

Additional steps:

  • Uninstall programs you don't use (Settings → Apps)
  • Move large files (videos, game installs) to an external drive
  • Use Storage Sense (Settings → System → Storage → turn it on)

Target: Keep at least 15–20% free space on your system drive.

4. Disable Background Apps

Many apps run in the background even when you're not using them.

They consume CPU, RAM, and sometimes even network bandwidth.

How to disable them:

  • Windows 10: Settings → Privacy → Background apps → Turn off "Let apps run in the background" or disable individual apps
  • Windows 11: Settings → Apps → Installed apps → click each app → Advanced options → Background apps permissions → Never

Also check:

  • Task Manager → Processes — look for apps you don't recognize
  • System Tray (bottom-right) — right-click and quit any unnecessary tools

5. Change Power Plan to High Performance

Windows has different power plans.

On laptops, the default is often Balanced or Power Saver to save battery.

But on desktops — or when plugged in — High Performance gives you full CPU speed.

How to change it:

  1. Search "Power Options" in the Start menu
  2. Select High Performance
  3. If you don't see it, click Show additional plans (on Windows 11) or Create a power plan → High Performance

For gaming PCs: Look for Ultimate Performance (available on some Windows editions).

Battery warning: This uses more power on laptops. Use it only when plugged in.

6. Update Drivers

Outdated drivers can cause performance issues — especially graphics, network, and chipset drivers.

How to check and update:

  1. Open Device Manager (right-click Start → Device Manager)
  2. Expand categories (especially Display Adapters, Network Adapters, and System Devices)
  3. Right-click → Update Driver → Search automatically

Alternative: Visit your motherboard or laptop manufacturer's website and download the latest drivers.

Pro tip: Use Intel Driver & Support Assistant or Dell Update / Lenovo Vantage for automatic driver updates.

7. Consider Disabling Windows Search Indexing (Optional)

Windows Search indexes your files so you can find them quickly.

But indexing uses CPU and disk I/O — and if you don't search often, it may not be worth the resource cost.

How to disable indexing (optional):

  1. Press Win + R, type services.msc, press Enter
  2. Find Windows Search
  3. Right-click → Properties
  4. Change Startup type to Disabled
  5. Click Stop → Apply → OK

Important note: This is an optional tweak. On modern SSDs, Windows Search has minimal performance impact. Only disable it if you actively notice high disk or CPU usage from the search indexer and don't rely on instant file search.

What you lose: Instant search results. You can still find files — it just takes a moment longer.

8. Run Disk Cleanup and Optimization

Your drive can become fragmented over time (HDD) or need TRIM (SSD).

How to do it:

  1. Open This PC → right-click C: → Properties → Tools
  2. Under Optimize and defragment drive, click Optimize
  3. Select your drive → click Optimize

For HDD: This defragments files (can take hours — run overnight).

For SSD: This runs TRIM (takes seconds).

9. Disable Startup Services You Don't Need

Some services launch at boot and run constantly — using CPU and RAM.

How to check:

  1. Press Win + R, type msconfig, press Enter
  2. Go to the Services tab
  3. Check Hide all Microsoft services (critical — don't disable these)
  4. Look at the remaining services

What to disable (usually safe):

  • Print Spooler (if you don't use a printer)
  • Fax service
  • XBox services (if you don't game)
  • Bluetooth services (if you don't use Bluetooth)
  • Windows Error Reporting (you can disable)

Be careful: Research a service before disabling it if you're unsure.

10. Malware and Antivirus Conflicts

This is a paradox: security software can slow down your system.

Third-party antivirus tools often:

  • Scan every file you open
  • Inject into every process
  • Slow down file transfers

What to do:

  1. Run a full scan with Windows Security (built-in) or Malwarebytes
  2. If no threats are found, temporarily uninstall third-party antivirus
  3. Check if performance improves

For many users, Windows Defender provides sufficient built-in protection without requiring another antivirus.

11. Check for System File Corruption

Corrupted system files can cause slowdowns, crashes, and instability.

How to check and repair:

  1. Open Command Prompt as Administrator
  2. Run: sfc /scannow
  3. Wait for the scan to complete

If sfc finds issues but can't fix them:

  1. Run: DISM /Online /Cleanup-Image /RestoreHealth
  2. Wait for it to complete (10–15 minutes)
  3. Run sfc /scannow again

Pro tip: Run this once a month to keep your system healthy.

Summary Table

Issue Quick Fix
Slow boot Disable startup apps
Slow performance Disable visual effects
Full drive Run Disk Cleanup
Background apps Disable in Settings
Laptop slow unplugged Change power plan to High Performance
Outdated drivers Update via Device Manager
Search indexing Disable only if causing high usage (optional)
Services consuming resources Disable unnecessary services in msconfig
Antivirus slowing system Use Windows Defender only
System file issues Run sfc /scannow and DISM

What If You Want to Monitor Performance Automatically?

Manually checking all of the above takes time.

You have to:

  • Check Task Manager regularly
  • Monitor CPU and RAM usage
  • Watch for new startup items
  • Track background services

Instead of doing all that manually, I built SysPulse — a lightweight Windows security and performance monitoring tool.

SysPulse:

  • Tracks CPU, RAM, Disk, and Network usage in real-time
  • Alerts you when processes spike or crash
  • Logs startup changes and background services
  • Uses less than 30MB of RAM — less than a single browser tab
  • Sends Telegram notifications when unusual activity is detected

You can set it up once and let it watch your PC for you.

You can find it at: syspulse.pro

Final Thought

You don't need to buy a new PC.

Most Windows slowness comes from:

  • Too many startup programs
  • Cluttered disk
  • Visual effects
  • Background apps

Start with the simple fixes:

  1. Disable startup apps
  2. Turn off visual effects
  3. Run Disk Cleanup
  4. Change power plan

If you want to go further, disable background apps, update drivers, and check for system file corruption.

The result: A faster, more responsive PC — without spending a dollar.

Have questions or a speed issue I didn't cover? Drop a comment below — I read every one.

Happy speeding!

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