How to Speed Up Windows 11 — 12 Proven Methods

Windows 11 can feel sluggish over time — slow boot, laggy apps, a freezing desktop. The good news: you don't need to reinstall Windows or buy new hardware. These 12 proven methods can dramatically speed up Windows 11 in under an hour, completely for free.

Why Does Windows 11 Slow Down?

The main culprits behind a slow Windows 11 PC are:

• Too many apps launching at startup
• Low disk space (less than 10% free)
• Background apps consuming CPU and RAM
• Power plan set to "Balanced" instead of "High performance"
• Outdated or bloated drivers
• Malware or adware running in the background
• Too many visual effects enabled

Method 1: Disable Startup Apps

This single change often cuts boot time in half. Many apps add themselves to startup without asking.

1. Press Ctrl + Shift + Esc to open Task Manager
2. Click the "Startup apps" tab
3. Sort by "Startup impact" (High first)
4. Right-click each unnecessary app → "Disable"
5. Safe to disable: Spotify, Discord, Teams, OneDrive, Skype, Steam
6. Keep enabled: antivirus, audio drivers, GPU software

Method 2: Change Power Plan to High Performance

Windows 11 defaults to "Balanced" power plan, which throttles your CPU to save energy. Switch to High Performance for maximum speed.

1. Press Win + R, type powercfg.cpl, press Enter
2. Click "Show additional plans"
3. Select "High performance"

On laptops, use this when plugged in. It will increase power consumption but noticeably improve responsiveness.

Method 3: Disable Visual Effects

Windows 11 has many animations and transparency effects that consume GPU resources. Disabling them frees up resources for actual work.

1. Press Win + R, type sysdm.cpl, press Enter
2. Go to Advanced tab → click "Settings" under Performance
3. Select "Adjust for best performance" (disables all effects)
4. Or manually uncheck: "Animate windows", "Fade", "Shadow under mouse pointer", "Slide taskbar buttons"
5. Keep: "Smooth edges of screen fonts" (improves readability)

Method 4: Run Disk Cleanup

Windows accumulates gigabytes of temporary files, old updates, and cache over time.

1. Press Win + R, type cleanmgr, press Enter
2. Select your system drive (usually C:) and click OK
3. Check all boxes, then click "Clean up system files"
4. Check all boxes again (including "Previous Windows installations" if visible)
5. Click OK → "Delete Files"

This often frees up 5–15 GB on a typical system.

Method 5: Disable Background Apps

Many apps run in the background even when you're not using them, consuming RAM and CPU.

1. Open Settings → Apps → Installed apps
2. Click the three dots next to an app → "Advanced options"
3. Under "Background apps permissions", set to "Never"
4. Repeat for apps you rarely use: News, Weather, Mail, Xbox, Maps

Method 6: Check for Malware

Malware and adware are a major cause of mysterious slowdowns. Even if you have antivirus, a dedicated scanner can catch what's been missed.

1. Download Malwarebytes Free (malwarebytes.com)
2. Run a full system scan
3. Remove all detected threats
4. Restart your PC

See our full guide: How to Remove a Virus from Your Computer →

Method 7: Adjust Virtual Memory (Page File)

If you have less than 8 GB of RAM, adjusting virtual memory can help with heavy multitasking.

1. Press Win + R, type sysdm.cpl, press Enter
2. Advanced tab → Settings (Performance) → Advanced tab → "Change" (Virtual memory)
3. Uncheck "Automatically manage paging file size"
4. Select C: drive, choose "Custom size"
5. Initial size: 1.5x your RAM in MB. Maximum size: 3x your RAM in MB
6. Click Set → OK → restart

Method 8: Update Drivers

Outdated graphics, network, or chipset drivers can cause significant performance issues.

1. Press Win + X → Device Manager
2. Expand "Display adapters" → right-click your GPU → "Update driver"
3. Choose "Search automatically for drivers"
4. For NVIDIA: download GeForce Experience. For AMD: download Adrenalin Software

Method 9: Enable Storage Sense

Storage Sense automatically deletes temporary files and empties the Recycle Bin on a schedule.

1. Settings → System → Storage
2. Turn on "Storage Sense"
3. Click on it to configure: set it to run every week
4. Enable "Delete files in my recycle bin" after 14 days

Method 10: Disable Transparency Effects

Windows 11's frosted glass effect on the Start menu and taskbar uses GPU resources. Disabling it improves performance on older hardware.

1. Settings → Personalization → Colors
2. Turn off "Transparency effects"

Method 11: Defragment HDD (or Optimize SSD)

If you have a traditional hard drive (HDD), defragmenting it can noticeably improve read speeds. SSDs should be optimized (TRIM), not defragmented.

1. Press Win + S, search for "Defragment and Optimize Drives"
2. Select your drive and click "Optimize"
3. Windows automatically detects drive type and performs the right operation

Method 12: Reset Windows (Last Resort)

If your PC is still slow after all the above, a clean reset removes accumulated junk and restores Windows to a fresh state — without losing your personal files.

See the full guide: How to Factory Reset Windows 10/11 →

Conclusion

Start with Method 1 (disable startup apps) and Method 2 (High Performance power plan) — these two changes alone often make a dramatic difference. Work through the rest in order. If your PC is still slow after all 12 methods, a full Windows reset or hardware upgrade may be needed. Have questions? Message me on Telegram — I'm happy to help.