Windows 11 brings a modern interface and improved security, but even advanced users often fall into optimization pitfalls that actually hinder performance. Here are 10 ways to optimize Windows 11, each paired with a common mistake to avoid, and actionable tips for best results.
1. Overusing Startup Program Management Tools
Mistake: Disabling all startup items indiscriminately
Many users disable every startup program, but some are necessary for device drivers, security, or system stability.
What to do:
Use Task Manager (Ctrl+Shift+Esc) to review startup apps. Only disable non-essential ones you recognize, such as chat or game launchers. Leave antivirus, audio, and graphics drivers enabled. For deeper management, Glary Utilities provides a Startup Manager that categorizes items and shows their impact, making it easy to identify non-essential entries.
2. Ignoring Windows Updates for Performance
Mistake: Delaying or blocking updates for fear of bugs
Some advanced users pause updates to avoid instability, missing critical performance improvements and security patches.
What to do:
Set active hours in Windows Update to avoid interruptions, but always keep your system updated. Use the advanced options to defer feature updates if stability is a concern, but never skip security updates. Check for optional driver and firmware updates, especially for newer hardware.
3. Excessive Registry Tweaking
Mistake: Applying every registry tweak found online
Registry edits can backfire, causing instability and performance loss.
What to do:
Only apply registry tweaks recommended by trusted sources with clear explanations and backup instructions. Always export your registry before changes. For safe cleanup, Glary Utilities offers a Registry Cleaner that scans for obsolete entries, improving performance without risky tweaks.
4. Not Uninstalling Unused Software Completely
Mistake: Just deleting program folders
Manually deleting program folders leaves behind registry entries and system files, slowing down your PC.
What to do:
Always uninstall via Settings > Apps or use a reputable uninstaller. Glary Utilities’ Uninstall Manager can batch-remove multiple applications and cleans remaining traces, freeing up disk space and reducing background processes.
5. Neglecting Disk Cleanup and Defragmentation
Mistake: Letting SSDs get too full or running old defrag tools
Modern SSDs don’t need regular defragmenting, and filling them up degrades performance.
What to do:
Keep at least 15-20% of SSD space free. Use Storage Sense (Settings > System > Storage) to automate cleanup. For comprehensive cleaning, Glary Utilities’ Disk Cleaner finds and removes temporary files, browser cache, and system junk, optimizing disk usage without manual intervention.
6. Disabling Windows Services in Bulk
Mistake: Turning off services based on generic online lists
Disabling essential services can break features or prevent updates.
What to do:
Research each service before disabling. Only tweak services you understand, such as Print Spooler (if you don’t use printers) or Remote Registry (rarely used by home users). Consider safe optimization profiles in Glary Utilities, which recommend changes based on usage patterns without risking stability.
7. Over-Reliance on Third-Party “Booster” Apps
Mistake: Installing multiple system optimizers that conflict or load at startup
Too many optimizers slow down your system and sometimes introduce adware.
What to do:
Choose a single, reputable all-in-one tool. Glary Utilities offers modules for disk cleaning, registry repair, startup management, and more—all in one interface—eliminating conflicts and system drag.
8. Skipping Driver Updates or Installing Unverified Drivers
Mistake: Using default Microsoft drivers or downloading from untrusted sources
Outdated or mismatched drivers can cause performance bottlenecks or crashes.
What to do:
Get drivers directly from your hardware vendor or through Device Manager > Update Driver. For advanced management, consider tools that check driver statuses, but always vet their sources. Avoid driver packs from unknown websites.
9. Poor Virtual Memory and Paging File Configuration
Mistake: Disabling the page file entirely or setting a fixed size without analysis
Turning off virtual memory can cause crashes with large applications.
What to do:
Leave Windows in charge unless you have specific needs. If you use heavy applications (e.g., video editing, VMs), ensure the page file is enabled and on your fastest drive. To monitor and adjust, go to System > Advanced system settings > Performance > Advanced > Virtual Memory.
10. Forgetting Hardware Maintenance and Monitoring
Mistake: Focusing only on software tweaks
Performance can be limited by overheating, dust, or failing hardware.
What to do:
Monitor temperatures with tools like HWMonitor. Clean dust from fans and heatsinks regularly. Glary Utilities includes system information and health monitoring tools to check disk health, memory status, and more.
Conclusion
Advanced users can extract excellent performance from Windows 11 by avoiding common mistakes and leveraging the right tools. Glary Utilities stands out as a comprehensive suite to safely manage startup programs, clean disks, repair registries, and monitor your system—without the complications or risks associated with piecemeal optimizations. Approach each change with care, research, and reliable software to keep your Windows 11 machine at its best.