How to Speed Up Windows 11: 20 Tweaks That Work in 2026

Table of Contents

1. Step 0: Diagnose Before You Optimize
2. Windows 11-Exclusive Features That Boost Performance
3. Quick Wins: Startup, Power & Visual Tweaks
4. Storage, RAM & Driver Optimizations
5. What Microsoft Is Fixing in 2026 (25H2 & 26H2)
6. Common Questions — How to Speed Up Windows 11 Performance
7. Conclusion: 3 Takeaways for a Faster Windows 11 in 2026

Is your Windows 11 PC crawling when it should be sprinting? You’re not alone. As of early 2026, even systems with 16 GB of RAM can idle at over 10 GB used — before you open a single app. Whether you’re dealing with sluggish startups, laggy multitasking, or a laptop that heats up just browsing Chrome, this guide covers 20 proven tweaks to speed up Windows 11 performance right now. We’ll also cover what Microsoft is fixing in 25H2 and 26H2 so you know which optimizations are worth your time — and which ones Microsoft will handle for you.

Step 0: Diagnose Before You Optimize

Before tweaking anything, identify your actual bottleneck. A 5-minute diagnosis prevents you from optimizing the wrong thing.

• CPU bottleneck: Press Ctrl+Shift+Esc to open Task Manager. If CPU usage sits above 80% at idle, a background process is the culprit. Click the CPU column to sort by highest usage.
• RAM bottleneck: Check the Memory tab in Task Manager. If “In use” plus “Standby” leaves less than 1 GB free, you’re RAM-limited. Windows 11 on 8 GB systems often hits 6 GB at idle — a baseline Microsoft confirmed it is actively working to reduce in 2026.
• Disk bottleneck: Open Resource Monitor (search “resmon”) → Disk tab. Any process with consistently high disk I/O and a read/write queue above 1.0 is choking your system. This is the #1 cause of slowness on HDD-based laptops.
• Thermal throttling: If your PC slows down under load but not at idle, check temperatures with HWiNFO64. CPU temps above 90°C trigger throttling — no software tweak will fix that; you need to clean the fans or repaste the heatsink.

Windows 11-Exclusive Features That Boost Performance

These tweaks use features unique to Windows 11 — you won’t find them in Windows 10 guides.

1. Efficiency Mode in Task Manager

Windows 11’s Efficiency Mode lowers a process’s scheduling priority and applies EcoQoS — an energy-efficient Quality of Service signal that tells the CPU to deprioritize the process. Open Task Manager, find a CPU-hungry background app (Chrome Helper, antivirus scan, update service), select it, and click the Efficiency mode leaf icon in the toolbar. Microsoft Edge already does this automatically for background tabs. Use it on any non-critical process eating CPU at idle.

2. Hardware-Accelerated GPU Scheduling (HAGS)

HAGS moves GPU memory management from the CPU to the GPU’s own scheduler, reducing latency for graphics-intensive work. Go to Settings → System → Display → Graphics → Change default graphics settings → toggle Hardware-Accelerated GPU Scheduling On. Requires a GPU driver from 2021 or later. Most noticeable improvement in games and video editing.

3. Storage Sense — Set and Forget

Storage Sense automatically deletes temp files, Recycle Bin items older than 30 days, and Downloads that haven’t been opened in 30+ days. Go to Settings → Storage → Storage Sense and toggle it On. Click the arrow to configure cleanup frequency. A full disk on your Windows drive causes severe performance degradation — keep at least 10–15% free space at all times.

Quick Wins: Startup, Power & Visual Tweaks

The tweaks below each take under two minutes. Combined, they can meaningfully reduce boot time and improve everyday responsiveness — especially on budget hardware. For a broader PC optimization checklist, see our complete PC speed-up guide for 2026.

Tweak	Where	Expected Gain	Time
Disable high-impact startup apps	Task Manager → Startup apps	30–60 sec faster boot	< 2 min
Set Power Mode to Best Performance	Settings → System → Power & battery	5–15% faster CPU-bound tasks	< 1 min
Turn off Transparency Effects	Settings → Personalization → Colors	Smoother UI on integrated GPU	< 1 min
Disable all animations via sysdm.cpl	Search “sysdm.cpl” → Advanced → Performance	Snappier window open/close	< 2 min
Disable Game Mode (non-gaming use)	Settings → Gaming → Game Mode	Frees CPU/GPU scheduling overhead	< 1 min

4. Disable Startup Programs

Open Task Manager → Startup apps tab. Sort by Startup impact. Anything rated High or Medium that you don’t need immediately at boot — Spotify, Teams, Discord, OneDrive sync — right-click and Disable. You can still open those apps manually; they just won’t slow down your boot.

5. open Ultimate Performance Power Plan

Windows 11 hides the Ultimate Performance plan by default. To open it, open Command Prompt as Administrator and run:

powercfg -duplicatescheme e9a42b02-d5df-448d-aa00-03f14749eb61

Then go to Control Panel → Power Options and select the newly appeared Ultimate Performance plan. Best for desktops plugged into mains power; on laptops, it will significantly reduce battery life.

6. Disable Visual Effects for Best Performance

Press Win+R, type sysdm.cpl, click the Advanced tab → Performance → Settings → select Adjust for best performance. This removes all window shadows, animation effects, and thumbnail previews. It looks less polished but runs noticeably faster on systems with 4–8 GB RAM or integrated graphics.

Storage, RAM & Driver Optimizations

These tweaks take a bit more time but often deliver the biggest performance gains, especially on older hardware.

7. Clean Up the Windows Component Store (Recover ~5 GB)

Windows keeps old update files in the component store (WinSxS folder). Open Command Prompt as Administrator and run:

dism.exe /online /cleanup-image /AnalyzeComponentStore

If it recommends cleanup, run:

dism /online /cleanup-image /startcomponentcleanup

PCWorld testing recovered nearly 5 GB on a fresh Windows 11 22H2 install. On systems with years of update history, recovery is often 10–20 GB.

8. Disable SysMain (Superfetch) if Using an SSD

SysMain preloads frequently used apps into RAM to speed up launch times. On HDDs it helps; on SSDs it creates unnecessary disk writes and can cause 100% disk usage spikes. Open Services (Win+R → services.msc), find SysMain, double-click, set Startup type to Disabled, click Stop, then OK.

9. Reduce Search Indexing Scope

Windows Search indexes your entire drive by default, which causes periodic CPU and disk spikes. Search for Indexing Options → Modify → remove large folders you rarely search (Downloads, Videos, OneDrive). This reduces background indexing without completely disabling search.

10. Update Your GPU Driver (Biggest Gaming/Graphics Gain)

Outdated GPU drivers are one of the most overlooked performance killers. For AMD cards, use AMD Software: Adrenalin Edition — it auto-detects and installs the correct driver. For NVIDIA, use GeForce Experience. For Intel Arc, use Intel Arc Control. If you’re doing a clean driver reinstall, use Display Driver Uninstaller (DDU) first to remove the old driver completely before installing the new one.

11. Check for Malware — It’s Often the Real Culprit

Adware and browser hijackers run constant background processes that spike CPU and network usage. Run a full scan with free antivirus software or Malwarebytes (free tier). Sort Task Manager by CPU — any process you don’t recognize that’s consistently above 5% CPU usage deserves investigation.

12–20: More Targeted Tweaks

• 12. Disable OneDrive Startup Sync: Right-click the OneDrive tray icon → Settings → General → uncheck Start OneDrive automatically when I sign in to Windows.
• 13. Disable Notifications Polling: Settings → System → Notifications → turn off “Get tips and suggestions when using Windows” to reduce background OS polling.
• 14. Uninstall Unused Apps: Settings → Apps → Installed apps → sort by Size — uninstall anything you haven’t opened in 6 months.
• 15. Disable Memory Integrity (gaming-only trade-off): Windows Security → Device Security → Core Isolation → toggle off Memory Integrity. Removes virtualization overhead but reduces kernel-level attack protection — only do this on a dedicated gaming rig.
• 16. Verify SSD TRIM is Enabled: Open Admin Command Prompt, run fsutil behavior query DisableDeleteNotify. Output of 0 means TRIM is active. If you see 1, run fsutil behavior set DisableDeleteNotify 0 to enable it.
• 17. Optimize Drives (HDD defrag / SSD TRIM): Search “Defragment and Optimize Drives” — Windows auto-detects the drive type. SSDs get TRIM/optimization, not defragmentation. Schedule weekly for HDDs.
• 18. Run System File Checker: Open Admin Command Prompt, run sfc /scannow — repairs corrupted system files that cause random slowdowns and crashes. Takes 10–15 minutes.
• 19. Clean Up System Files via Disk Cleanup: Search “Disk Cleanup” → select C: → click “Clean up system files” → check “Lifetime Optimization Files” to remove old Windows Update downloads.
• 20. Restart Weekly (Not Hibernate): A full restart clears RAM, flushes DNS cache, and resets services with memory leaks. If you hibernate instead of shutting down, your effective “uptime” may span weeks — restart at least once a week.

What Microsoft Is Fixing in 2026 (25H2 & 26H2)

On March 20, 2026, Microsoft published a detailed commitment to Windows 11 quality improvements. Here’s what’s confirmed — and why it affects which tweaks are worth your time today:

• Lower RAM baseline: Microsoft is actively reducing idle memory footprint. Systems with 8 GB RAM currently idle at ~6 GB used. This is being addressed in upcoming updates — if you’re RAM-limited, Microsoft’s fix may be more impactful than any tweak you can do today.
• WinUI 3 Start Menu migration: The current Start menu uses React-based web components, which add interaction latency. The 2026 migration to native WinUI 3 will make Start and File Explorer noticeably faster to respond.
• File Explorer speed: Microsoft acknowledged that File Explorer still lags Windows 10 in early 2026. Fixes for search, navigation, context menus, and copy/move operations are rolling out in Insider builds now.
• Single monthly reboot requirement: Windows Update will consolidate to one restart per month — no more mid-session forced interruptions.
• Responsiveness under load: Explicitly confirmed: Windows 11 “will run faster under heavy load” — targeting the performance degradation users see when CPU and RAM are stressed simultaneously.
• Better dock/wake reliability: Improved USB, Bluetooth, and dock resume behavior targets the resume-from-sleep sluggishness that plagues docked laptops.

Practical implication: Don’t over-tweak things Microsoft is about to fix natively. The WinUI 3 migration means that third-party Start menu workarounds will need to be undone once Microsoft ships the native version. Focus your manual tweaks on startup apps, power settings, GPU drivers, and storage cleanup — those deliver immediate gains and stay relevant regardless of what Microsoft ships.

If you’re planning a hardware upgrade alongside these software tweaks, see our guide on external SSD vs. HDD in 2026 — adding an external SSD for scratch storage reduces contention on your main system drive significantly.

Common Questions — How to Speed Up Windows 11 Performance

Q: Why is Windows 11 so slow even on a new PC?

A: Windows 11 has a higher baseline RAM footprint than Windows 10 — even idle systems with 16 GB RAM can use over 10 GB. Additional causes include startup apps pre-installed by OEMs, background Windows Update activity, antivirus scans, and OneDrive syncing on startup. Open Task Manager immediately after boot, sort by CPU and RAM, and identify what’s eating resources before you open anything.

Q: Does Efficiency Mode in Windows 11 actually work?

A: Yes — and it’s underused. Efficiency Mode applies EcoQoS, a CPU scheduling hint that directs the processor to use more power-efficient cores and frequencies for the affected process. Microsoft Edge uses it automatically for background tabs. You can apply it manually to any background process in Task Manager. It will slow down the targeted process slightly, which is the intended effect for tasks that don’t need low latency.

Q: Should I disable SysMain (Superfetch) to speed up Windows 11?

A: Only if your Windows drive is an SSD. SysMain was designed for HDDs to pre-load frequently used apps into RAM. On SSDs — which already load apps fast — SysMain causes unnecessary background disk writes and sometimes triggers 100% disk usage spikes. Disable it via services.msc if your system drive is an SSD. Leave it enabled on HDD-based systems.

Q: Will Windows 11 25H2 or 26H2 automatically fix my slow PC?

A: Some improvements are coming automatically — particularly the RAM footprint reduction, Start menu responsiveness (WinUI 3 migration), File Explorer speed, and single-monthly-reboot update behavior. These will arrive via Windows Update. However, no software update will fix hardware-level bottlenecks like a full SSD, an overheating CPU, or an underpowered GPU — the 20 tweaks in this guide address configuration issues that Microsoft updates won’t touch.

Conclusion: 3 Takeaways for a Faster Windows 11 in 2026

1. Diagnose first, tweak second. Check Task Manager for CPU, RAM, and disk bottlenecks before changing anything. You’ll fix the right problem instead of chasing symptoms.
2. The highest-use tweaks are the boring ones. Disabling startup apps, updating your GPU driver, clearing old update files, and setting the correct power mode deliver more real-world speed than any registry hack.
3. Microsoft is actively improving Windows 11 performance in 2026. The RAM reduction, WinUI 3 migration, and File Explorer improvements are coming via Windows Update — keep your system updated and you’ll get those gains for free.

For more step-by-step Windows and software tutorials, browse the How-to guides at Hubkub.com. For tested software recommendations, visit our Reviews section.

Last Updated: April 13, 2026