Windows 11 is designed for modern performance, but over time, even the best PCs can start to slow down. You may notice Windows 11 PC running slowly, taking too long to start, or lagging during tasks like browsing or gaming. Well, corrupted system files, background apps, and outdated settings can slow down even a new computer. However, you can use built-in tools and tweaks to boost Windows 11 performance easily. Whether you’re dealing with lag, slow boot times, or apps taking forever to load, here is how to speed up your Windows 11 computer — without needing to be a tech expert.
What Makes Your Windows 11 PC Slow?
Your PC can get sluggish for a few common reasons. A user reported that their Windows 11 laptop was freezing during video editing, which was resolved with a quick cleanup. Here are the most common reasons why Windows 11 PCs become sluggish over time:
- Apps running in the background (such as messaging apps, background updates, and widgets) can consume RAM and CPU, leaving fewer resources for tasks you’re actively using.
- A nearly full hard drive slows down read/write speeds and can even affect virtual memory, causing your system to lag.
- If too many apps launch automatically when you boot your PC, it can make the startup feel painfully slow.
- Spyware, bloatware, and viruses can run silently in the background, draining system resources and slowing everything down.
- Using outdated drivers or missing critical updates can lead to performance issues, bugs, or even app crashes.
Method 1: Clean Up Storage Space
A full hard drive slows Windows 11, making apps like Edge or Microsoft Store take longer to open. Clearing junk files, such as old downloads or temporary data, frees up space and boosts performance. A student’s PC stopped lagging after deleting 30GB of unused files, per a forum post. Windows 11’s Storage Sense does this automatically, perfect for beginners, but you’ll need to check occasionally to keep your drive lean.
- Go to Settings > System > Storage on Windows 11.
- Wait a moment for it to show your drive’s used space.
- Enable Storage Sense to remove temporary files automatically.
- Click Cleanup recommendations and select old files (e.g., Downloads) to delete.
- Restart your PC to feel the difference. Open an app (e.g., Edge) to see if it loads faster.

Method 2: Manage Startup Apps
Windows 11 loads apps like Discord or OneDrive at startup, which can make booting feel slow. Disabling the ones you don’t need right away can speed up your computer and free up memory for work or games. A gamer cut their boot time from 2 minutes to 30 seconds by disabling startup apps, according to an online post.
- Press Ctrl + Shift + Esc to open Task Manager.
- Click the Startup apps tab at the top.
- Find apps with “High impact” (e.g., Spotify).
- Right-click high-impact apps and select Disable for the ones you don’t need at boot.
- Restart your PC to check if it starts faster.
- Open a program like File Explorer to confirm it runs smoothly.

Method 3: Update Your Drivers
Drivers tell Windows 11 how to use your PC’s parts, like the graphics card or Wi-Fi. Old drivers can slow games, videos, or browsing. Updating drivers with the latest version boosts performance. Windows 11 handles most updates automatically, making this beginner-friendly, but you’ll need Wi-Fi and a few minutes for downloads.
- Type “Device Manager” in the Start menu search and click it.
- Look for devices with a yellow triangle showing updates needed.
- Right-click a device (e.g., “NVIDIA Graphics”) and click Update driver.
- Choose Search automatically for drivers to find updates online.
- Restart your PC after the updates finish. Test a game or browser to notice the speed boost.

Method 4: Adjust Visual Effects
Windows 11’s animations, like window fades and taskbar glows, are pretty, but they might make older PCs or budget laptops run a bit slower. Turning off visual effects, including animations, can help improve performance and make apps open more quickly. This simple tweak is already available in Windows 11 and is especially helpful for low-power devices, though your desktop might look simpler.
Disabling visual effects like animations can improve PC performance, especially on older or less powerful machines.
- Search “Performance” in the Start menu and select Adjust the appearance and performance of Windows.
- Wait for the Visual Effects tab to load. Select Adjust for best performance to disable all animations.
- Click Apply to save changes. Close the settings window.
- Now Open File Explorer to see if it feels faster.

Method 5: Optimize Power Settings
Windows 11’s default power plan balances battery and speed, but it can limit performance on desktops or plugged-in laptops. Switching to high performance mode unlocks your PC’s full power and speeds up tasks like video rendering or gaming.
- Go to Settings > System > Power & battery.
- Click the Power mode drop-down menu.
- Select the Best performance from the list.
- Close the settings window. Restart your PC to apply the change.
- Run a large application (e.g., Photoshop) to assess performance.

Method 6: Uninstall Unnecessary Apps
Over time, we all install programs we no longer use — games, trial software, or one-time utilities. These apps can clutter your system, take up disk space, run in the background, and even check for updates regularly. By uninstalling unused or rarely used programs, you reduce system load.
- Go to Settings > Apps > Installed apps. Click the three-dot menu next to unused apps and choose Uninstall.
- In addition, turn off background apps in Settings > Apps > Apps & features.
- Visit Settings > Windows Update > Check for updates if pending updates there allow them to download and install. Restart your PC to apply the changes.
Again, Malware and potentially unwanted programs (PUPs) can run in the background, consuming CPU, memory, and disk resources. Running a malware scan using Windows Security or a third-party tool helps detect and remove threats that may be affecting your PC’s performance and stability.
Mechanical hard drives (HDDs) are significantly slower than solid-state drives (SSDs). If your PC still runs on an HDD, upgrading to an SSD can speed up everything — from boot times and file access to app loading and multitasking.
Frequently Asked Questions
Why is my Windows 11 PC running slow?
Many factors can slow down your PC, including too many startup programs, outdated drivers, malware, or insufficient RAM.
How can I quickly boost Windows 11 performance?
Disable unnecessary startup apps, clear temporary files, and ensure your system is up to date for a quick speed boost.
Does upgrading hardware improve Windows 11 performance?
Yes, upgrading to an SSD or increasing your RAM can significantly improve your system’s performance.
Is it safe to use third-party PC cleaning tools?
It’s best to use trusted programs or built-in Windows tools to avoid unwanted software or potential damage.
How often should I restart my Windows 11 PC?
Restarting at least once a week helps keep your system running smoothly and ensures essential updates are installed.






