Fix File Explorer Lag on Windows 11 24H2 – 13 Proven Solutions

Is File Explorer taking forever to open folders or freezing after the Windows 11 24H2 update?

If File Explorer has become slow, unresponsive, or starts lagging after installing Windows 11 version 24H2, you’re not alone. Many users notice delays when opening folders, right-clicking files, or switching between tabs shortly after a major Windows update.

In most cases, the problem isn’t caused by damaged files or failing hardware. Instead, Windows may still be rebuilding its search index, synchronizing cloud files, or loading third-party shell extensions that affect File Explorer’s performance.

In this guide, you’ll learn why File Explorer becomes slow after Windows 11 24H2, how to identify the most likely cause, and the safest step-by-step solutions to restore normal performance.

• Why File Explorer slows down after major Windows updates
• Quick fixes you can try in just a few minutes
• Step-by-step solutions for persistent lag and freezing
• Ways to prevent File Explorer from becoming slow again

Whether you’re experiencing slow folder loading, delayed right-click menus, or File Explorer freezing on Windows 11, this guide will help you troubleshoot the issue safely—without immediately resorting to resetting your PC.

What You’ll Notice

File Explorer lag doesn’t always look the same. Depending on the cause, you may experience one or more of the following symptoms after installing Windows 11 version 24H2.

• Folders take several seconds to open.
• The right-click context menu appears slowly.
• File Explorer displays “Not Responding” before recovering.
• Switching between tabs feels sluggish.
• The desktop or taskbar also becomes less responsive.
• Explorer briefly freezes while loading folders or drives.

If these symptoms started shortly after installing Windows 11 24H2, they’re often related to post-update background activity rather than a hardware failure.

Why File Explorer Becomes Slow After Windows 11 24H2

File Explorer often feels slower after a major Windows feature update, but this doesn’t necessarily mean something is wrong with your computer.

After installing Windows 11 version 24H2, Windows performs several background tasks that temporarily increase disk, CPU, and memory usage. During this period, File Explorer may become less responsive, especially when opening folders or displaying file thumbnails.

How File Explorer Works

File Explorer is more than just a file manager. Every time you open a folder, Windows loads file information, thumbnails, search indexes, cloud synchronization status, and context menu extensions before displaying the contents.

If any of these components respond slowly, File Explorer itself may appear to freeze—even though Windows is still working normally in the background.

Understanding this process makes it much easier to identify whether the slowdown is caused by Windows, OneDrive, third-party software, or your storage device.

The most common causes include:

Before You Start Troubleshooting

Before changing Windows settings or running repair tools, take a few minutes to confirm whether the slowdown is temporary. File Explorer often becomes less responsive immediately after a major Windows update while background optimization is still in progress.

Checking these basic points first can save you time and help you avoid unnecessary troubleshooting.

• Restart your computer if you haven’t done so since installing the update.
• Wait several hours after a major Windows update to allow background tasks to finish.
• Check whether the slowdown affects every folder or only specific locations.
• Confirm that your system drive has sufficient free space.
• Temporarily close applications that may be using many system resources.

If File Explorer is still slow after checking these items, continue with the solutions below, starting with the quickest fixes.

Quick Fixes to Try First

Before changing advanced Windows settings, try these quick fixes. File Explorer lag is often caused by a temporary process, unfinished background activity, or high system usage after an update.

• Restart File Explorer from Task Manager.
• Restart your computer to clear temporary system issues.
• Wait several hours if Windows 11 24H2 was installed recently.
• Install pending Windows updates that may include performance fixes.
• Close unnecessary applications to reduce CPU, memory, and disk usage.

If File Explorer becomes responsive again, the problem was probably temporary. If the lag returns or nothing changes, continue with the detailed solutions below.

Step-by-Step Solutions

Follow the solutions in order, starting with the safest and easiest methods. Test File Explorer after each solution so you can identify which change resolves the problem.

You don’t need to complete every step. If File Explorer returns to normal, you can stop troubleshooting.

Solution 1: Restart File Explorer

File Explorer runs as part of the Windows Explorer process, which also controls parts of the desktop and taskbar. After a major update, this process may become slow or temporarily unresponsive.

Restarting Windows Explorer refreshes the process without closing your open applications or restarting the entire computer.

To restart File Explorer:

1. Press Ctrl + Shift + Esc to open Task Manager.
2. If Task Manager opens in the simplified view, select More details.
3. Open the Processes section.
4. Find and select Windows Explorer.
5. Click Restart task or Restart.

Your taskbar and desktop may disappear briefly while Windows Explorer restarts. This is normal, and they should return automatically within a few seconds.

After the restart, open File Explorer and test whether folders, tabs, and right-click menus respond normally.

Tip: If restarting Windows Explorer fixes the problem only temporarily, continue with the next solutions. Repeated slowdowns may be caused by background applications, synchronization, or shell extensions.

Solution 2: Restart Your Computer

If restarting File Explorer doesn’t help, restart Windows completely. A full restart clears temporary memory, reloads system services, and allows unfinished update tasks to resume correctly.

This is especially important if you haven’t restarted your computer since installing Windows 11 version 24H2.

1. Save your work and close open applications.
2. Open the Start menu.
3. Select Power.
4. Click Restart.

After Windows starts again, wait a few minutes before opening several applications. Then test File Explorer by opening different folders and using the right-click menu.

Important: Choose Restart rather than shutting down and turning the computer back on. On systems using Fast Startup, a normal shutdown may not fully reload every Windows component.

Solution 3: Allow Post-Update Tasks to Finish

Windows continues performing maintenance after a major feature update. It may rebuild the search index, generate thumbnails, scan files, optimize applications, and synchronize cloud data in the background.

These tasks can temporarily increase CPU, memory, and disk activity, making File Explorer feel slower than usual.

To check whether background activity is causing the slowdown:

1. Press Ctrl + Shift + Esc to open Task Manager.
2. Check the CPU, Memory, and Disk columns.
3. Look for processes using unusually high resources.
4. Leave the computer powered on and connected to the internet for a while.
5. Avoid running several large applications until the background activity settles.

If the 24H2 update was installed recently, File Explorer performance may improve automatically after several hours or after the computer has been left idle.

Tip: Keep the computer connected to power during this process, especially on a laptop. Windows may pause some maintenance tasks while running on battery power.

Solution 4: Install the Latest Windows Updates and Drivers

Microsoft frequently releases cumulative updates that improve File Explorer performance and resolve issues discovered after major Windows feature updates. Hardware manufacturers also publish updated graphics, chipset, and storage drivers that can improve system responsiveness.

Even if you’ve already installed Windows 11 version 24H2, newer updates may contain fixes for File Explorer lag.

To check for updates:

1. Open Settings.
2. Select Windows Update.
3. Click Check for updates.
4. Install any available updates.
5. Restart your computer if prompted.

You should also check your computer manufacturer’s website for updated graphics, chipset, and storage drivers if File Explorer continues to perform poorly.

Tip: Driver updates from your PC manufacturer are often newer and better optimized than the versions installed automatically through Windows Update.

Solution 5: Change File Explorer’s Start Location

By default, File Explorer opens the Home page, which displays recent files, frequent folders, and cloud-based content. While convenient, loading this information can slow File Explorer on some systems.

Opening File Explorer directly to This PC reduces the amount of information Windows has to load each time you launch Explorer.

To change the default start location:

1. Open File Explorer.
2. Click the three-dot menu (…) and choose Options.
3. Under Open File Explorer to, select This PC.
4. Clear the check boxes for:
   • Show recently used files
   • Show frequently used folders
5. Click Apply, then OK.

Open File Explorer again and see whether folders appear more quickly.

Why this works: Reducing the amount of content loaded on startup allows File Explorer to open more quickly, particularly on systems with many recent files or cloud-synchronized folders.

Solution 6: Pause OneDrive Synchronization

If OneDrive is synchronizing thousands of files after the Windows 11 update, File Explorer may become temporarily sluggish while loading folders and cloud status icons.

Pausing synchronization for a short time is a safe way to determine whether OneDrive is contributing to the slowdown.

To pause OneDrive:

1. Select the OneDrive cloud icon in the notification area.
2. Choose Settings.
3. Select Pause syncing.
4. Choose a temporary duration, such as 2 hours.

After pausing synchronization, test File Explorer by opening several folders. If performance improves noticeably, review your OneDrive synchronization settings or reduce the number of folders being synchronized.

Important: This is only a diagnostic step. Resume synchronization after testing to ensure your files continue backing up correctly.

Solution 7: Clear File Explorer History and Cache

Over time, File Explorer stores recently opened files, folder history, and thumbnail cache data to make browsing faster. However, if this information becomes outdated or corrupted, it can have the opposite effect and cause Explorer to respond more slowly.

Clearing this data is completely safe. Windows will automatically rebuild the cache as needed.

Clear File Explorer History

1. Open File Explorer.
2. Select … → Options.
3. Under the General tab, locate Privacy.
4. Click Clear.
5. Select OK.

Clear Temporary Files and Thumbnail Cache

1. Press Win + R.
2. Type cleanmgr and press Enter.
3. Select your Windows drive.
4. Check:
   • Temporary files
   • Thumbnails
5. Click OK.

Tip: The first time you open folders after clearing the thumbnail cache, Windows must recreate preview images, so some folders may load slightly slower temporarily.

Solution 8: Disable Unnecessary Startup Apps

Applications that start automatically with Windows consume memory and CPU resources, even when you aren’t actively using them. If too many programs are running in the background, File Explorer may become less responsive.

Reducing unnecessary startup applications can improve overall Windows performance, not just File Explorer.

1. Press Ctrl + Shift + Esc.
2. Open Startup apps.
3. Review the list carefully.
4. Disable only applications you don’t need to start automatically.

Note: Avoid disabling antivirus software or hardware drivers unless you’re certain they’re unnecessary.

Solution 9: Check Third-Party Shell Extensions

If File Explorer becomes slow only when you right-click files or folders, third-party shell extensions are one of the most common causes.

Many applications—including archive utilities, cloud storage services, PDF software, image editors, and version control tools—add extra options to Windows’ right-click menu. Every time you right-click, Windows loads these extensions before displaying the menu.

If one extension responds slowly or is incompatible with Windows 11 version 24H2, the entire context menu may appear to freeze.

A free utility called ShellExView can help identify problematic extensions.

1. Download and run ShellExView.
2. Sort the list by Company.
3. Temporarily disable only non-Microsoft shell extensions.
4. Restart File Explorer.
5. Test whether the right-click menu responds normally.
6. Re-enable extensions one at a time until you identify the problematic application.

Why this works: Microsoft shell extensions are generally well-tested with Windows updates. Third-party extensions are more likely to introduce compatibility problems after major feature updates.

Take your time with this step. Re-enabling extensions one by one makes it much easier to determine which application is responsible for the slowdown.

Solution 10: Repair Corrupted Windows System Files

If File Explorer continues to lag after trying the previous solutions, corrupted Windows system files may be contributing to the problem.

Windows includes two built-in tools that can scan for damaged system files and automatically repair many common issues.

To repair Windows system files:

1. Open Terminal (Administrator).
2. Run the following command:

sfc /scannow

Wait until the scan reaches 100%.

Next, run:

DISM /Online /Cleanup-Image /RestoreHealth

Restart your computer after both commands have finished.

Why this works: SFC repairs corrupted Windows system files, while DISM repairs the Windows component store that SFC relies on. Running both tools provides a more thorough repair than using either command alone.

Solution 11: Test Whether Windows Search Is Causing the Slowdown

Windows Search constantly indexes files to provide faster search results. Immediately after a major Windows update, this indexing activity may temporarily increase disk usage and make File Explorer feel slower.

You can temporarily stop the Windows Search service to determine whether indexing is contributing to the problem.

1. Press Win + R.
2. Type services.msc and press Enter.
3. Locate Windows Search.
4. Right-click it and select Stop.
5. Test File Explorer.

Important: This is only a temporary diagnostic test. Restart the Windows Search service after testing so Windows can continue indexing files normally.

Solution 12: Perform a Clean Boot

If File Explorer is still slow, another application or background service may be interfering with Windows.

A Clean Boot starts Windows with only essential Microsoft services, making it easier to determine whether third-party software is responsible.

If File Explorer performs normally after a Clean Boot, one of your installed applications is likely causing the slowdown.

Tip: Re-enable startup items gradually after testing so you can identify the application responsible for the issue.

Solution 13: Reset Windows (Last Resort)

If none of the previous solutions resolve the problem, resetting Windows may be the most effective option.

Fortunately, Windows allows you to reinstall the operating system while keeping your personal files.

• Open Settings.
• Select System → Recovery.
• Choose Reset this PC.
• Select Keep my files.

Although your personal files remain intact, you’ll need to reinstall most desktop applications after the reset.

Important: Consider backing up important files before resetting Windows, even if you choose the Keep my files option.

How to Prevent File Explorer from Becoming Slow Again

Once File Explorer is working normally again, a few simple habits can help keep it running smoothly.

While occasional slowdowns after major Windows updates are normal, regular maintenance can reduce the likelihood of future performance problems.

• Keep Windows updated with the latest cumulative updates.
• Install drivers provided by your computer manufacturer.
• Avoid installing unnecessary File Explorer add-ons or shell extensions.
• Keep at least 15–20% of your system drive free.
• Clear temporary files periodically using Disk Cleanup or Storage Sense.
• Restart your computer regularly instead of relying only on Sleep mode.
• Review startup applications occasionally and disable those you no longer need.

These simple maintenance steps can improve not only File Explorer performance but also the overall responsiveness of Windows.

Quick Troubleshooting Checklist

If you’re not sure which solution to try first, use this checklist as a quick reference.

Working through these solutions in order usually resolves most File Explorer performance issues without requiring a full Windows reset.

Frequently Asked Questions (FAQ)

Q1. Is File Explorer lag normal after Windows 11 24H2?

Yes. Many users notice slower File Explorer performance immediately after installing a major Windows feature update. Windows may still be rebuilding the search index, generating thumbnails, optimizing applications, and synchronizing cloud files. In many cases, performance improves automatically after these background tasks are completed.

Q2. Why is File Explorer only slow when I right-click?

A slow right-click menu is often caused by third-party shell extensions. Applications such as archive tools, cloud storage software, and PDF utilities add items to the context menu. If one extension responds slowly, the entire menu may be delayed.

Q3. Does OneDrive make File Explorer slower?

It can. If OneDrive is synchronizing a large number of files, File Explorer may spend extra time loading cloud status information. Temporarily pausing synchronization is a good way to determine whether OneDrive is contributing to the issue.

Q4. Can antivirus software slow File Explorer?

Yes. Some antivirus programs scan files every time they’re opened, which can make folders load more slowly. This is especially noticeable when accessing folders that contain many files.

Q5. Should I reset Windows if File Explorer is slow?

Not immediately. Most File Explorer performance problems can be resolved by restarting Explorer, installing updates, repairing system files, or disabling problematic shell extensions. Resetting Windows should be considered only after the other troubleshooting steps have failed.

Conclusion

File Explorer lag after Windows 11 24H2 can be frustrating, but in most cases it doesn’t indicate a serious hardware problem. By following the solutions in this guide—from simple restarts to advanced troubleshooting—you can usually identify the cause and restore normal performance without reinstalling Windows.

If you’re experiencing other Windows 11 problems after installing version 24H2, you may also find these guides helpful.

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タグ: Windows 11, OneDrive, troubleshooting, shell extensions, File Explorer, Performance