File Explorer not responding in Windows 11: how to fix it

Applies to: Windows 11 (24H2, 25H2 and 26H1) when File Explorer shows Not responding in its title bar, sits on Working on it…, closes by itself, or takes the taskbar down with it. Most steps also work on Windows 10, where menu names differ slightly. If Explorer only crashes the moment you right-click, our guide to Explorer crashing on right-click goes deeper into that case.

Microsoft’s own support page for a File Explorer that won’t open is short: check for updates, restart, and reset the PC if nothing else works. The steps in between come from Microsoft’s System File Checker page, its Windows release health notes and standard Windows settings. Where a step is our suggestion rather than Microsoft guidance, we label it.

Match your symptom

What you see	Likely cause	Start with
Explorer froze once and the desktop still works	A single stuck Explorer process	Restart Explorer first
Home or Quick access hangs on Working on it…	Recent files list, cloud files or a pinned folder that is offline	Fix 2, then Fix 7
Freezes in folders full of photos or videos	Thumbnail generation or the preview pane	Fix 3
Only Downloads, or one large folder, is slow	Folder type and grouping on a big folder	Fix 4
Taskbar and desktop also disappear or flash	Explorer itself crashing, often an add-on	Fix 5, then Fix 6
Freezes when a mapped drive or OneDrive folder is open	A network path that doesn’t answer	Fix 7
Black screen after sign-in, no desktop	Explorer didn’t start; a 2026 known issue in some setups	Restart Explorer first, then Known issues

First: restart Windows Explorer from Task Manager

File Explorer, the taskbar and the desktop all run inside one process, explorer.exe. Restarting it clears a hang without a full reboot and keeps your other apps open.

1. Press Ctrl + Shift + Esc to open Task Manager.
2. On the Processes page, find Windows Explorer. If you only see a small window, select More details first.
3. Right-click it and choose Restart task. The taskbar disappears for a moment and comes back.

If the taskbar is gone completely and there is no Windows Explorer entry, select Run new task in Task Manager, type explorer.exe and select OK. This is the same manual workaround Microsoft gives on its release health pages for a desktop that doesn’t load after sign-in.

A restart is a reset, not a repair. If Explorer freezes again within a day, carry on with the fixes below.

Fix 1: Install updates and restart properly

Microsoft’s support page for File Explorer problems starts here. Go to Start > Settings > Windows Update and select Check for updates. Install everything offered, including optional quality updates if Explorer problems started recently, then restart.

Microsoft points out that a restart also installs updates that are waiting, even if none showed up in the check. Use Restart, not Shut down: with Fast startup turned on, a shutdown can resume the same Windows session rather than starting a clean one. That second point is general Windows behaviour, not something Microsoft’s File Explorer page mentions.

Fix 2: Clear File Explorer history and open to This PC

Windows 11 opens Explorer on Home, which builds a list of recent files and frequent folders every time it loads. If that list points to files on a network share, a USB drive you removed or cloud storage that isn’t synced, Home can hang while it waits for them. Clearing the list and opening on This PC avoids that work. This is our suggestion; Microsoft’s File Explorer page recommends keeping Home but documents how to switch.

1. Open File Explorer. If it freezes straight away, try Win + E right after restarting Explorer.
2. Select See more (the three dots on the command bar) and then Options.
3. On the General tab, set Open File Explorer to to This PC.
4. Under Privacy, select Clear next to Clear File Explorer history.
5. As a test, also untick Show recently used files and Show frequently used folders. Some builds also list an option for files from Office.com; untick that too.
6. Select Apply, then OK, and restart Explorer.

Clearing history doesn’t delete any files. It only empties the recent list. If Explorer stays stable, you can turn the recent and frequent lists back on one at a time to see which one causes the delay. Pinned folders in Quick access stay pinned.

Fix 3: Turn off thumbnails and the preview pane

To draw a thumbnail or a preview, Explorer has to open the file with a handler, which may be part of Windows or come from an installed app such as a video codec pack or a PDF reader. A damaged file or a faulty handler can freeze the whole window. Turning both features off is a quick test.

• Close the preview pane: on the command bar select View > Show and untick Preview pane, or press Alt + P. If you use the details pane, turn that off as well for now.
• Open See more > Options, go to the View tab and tick Always show icons, never thumbnails. Select Apply.

If the freezes stop, the problem is in one file type or one handler rather than in Explorer. Note which folder used to freeze and what kind of files it holds; an app that installed its own preview handler for that file type is a good suspect. Then clear the thumbnail cache, which Windows rebuilds on its own: search Start for Disk Cleanup, pick the system drive, tick Thumbnails and select OK. Untick the thumbnail option again afterwards. Using Disk Cleanup for this, rather than deleting cache files by hand, is our suggestion because it can’t remove the wrong files.

Fix 4: When one folder always freezes

If only Downloads or one very large folder is slow, the folder view itself may be the issue. Windows picks a folder type from the content (for example Pictures or Videos), which can add extra columns and file reads, and Downloads is often grouped by date. On a folder with thousands of items, that extra work adds up. Our suggestion is to make the folder plain:

1. Right-click the folder in the navigation pane and choose Properties.
2. Open the Customize tab and set Optimize this folder for to General items. Tick Also apply this template to all subfolders if it has many subfolders.
3. Select OK. Then, inside the folder, open Sort on the command bar and choose Group by > (None).

Moving old installers and archives out of Downloads helps too. A folder that holds tens of thousands of files will always take longer to list, whatever the settings.

Fix 5: Open folder windows in a separate process

By default every Explorer window shares the process that also runs the taskbar and desktop, so one stuck folder can freeze everything. There is a long-standing option to run folder windows in their own process. In See more > Options, View tab, tick Launch folder windows in a separate process under Advanced settings, select Apply and restart Explorer.

This is our suggestion, not a Microsoft fix, and it doesn’t remove the cause. What it changes is the damage: a hung folder window can then be closed on its own while the taskbar keeps working. It uses a little more memory, which on most PCs isn’t noticeable.

Fix 6: Find a bad shell extension or add-on

Apps can add their own entries to Explorer: right-click menu items, sync status icons, preview handlers and property sheets. These shell extensions load inside explorer.exe, so a buggy one can freeze or crash Explorer even though the app itself isn’t open. Typical sources are archive tools, cloud storage clients, older antivirus suites and graphics or audio control panels.

• Check what failed. Search Start for Reliability and open View reliability history. Select a day with a red mark and look for Windows Explorer entries; the technical details often name the faulting module, a DLL file that points to the app behind it. Event Viewer, under Windows Logs > Application, shows the same crashes in more detail.
• Update or uninstall that app. If the module belongs to a third-party program, update it first. If the freezes continue, uninstall it from Settings > Apps > Installed apps and test again.
• No name in the logs? Think about what you installed just before the problems began and remove those apps one at a time.

Our right-click crash guide explains how to read those crash entries step by step and how to switch off one extension at a time. A clean boot (msconfig, hide Microsoft services, disable the rest) is a broader test if you can’t narrow it down; turn everything back on afterwards.

Fix 7: OneDrive, mapped drives and network folders

Explorer waits for every location it shows in the navigation pane and on Home. A mapped drive to a NAS that is switched off, a pinned folder on a work server you can’t reach from home, or a OneDrive folder that is still processing thousands of changes can all make Explorer look frozen for a while before it gives up.

• Pause OneDrive. Select the OneDrive cloud icon near the clock, open Settings (the gear) and choose Pause syncing. If Explorer is fast again, let OneDrive finish its work or check for sync errors. Our guide on how to stop OneDrive from syncing covers pausing and unlinking without losing files.
• Disconnect drives that are offline. In This PC, a mapped drive with a red cross isn’t reachable. Right-click it and choose Disconnect, or run net use in Terminal to list mapped drives and net use Z: /delete to remove one (replace Z: with the letter).
• Unpin unreachable folders. On Home, right-click any pinned network folder that isn’t available right now and choose Unpin from Quick access.
• Check the other cloud apps. Dropbox, Google Drive and similar clients add their own sync icons through shell extensions, so the add-on test in Fix 6 applies to them as well.

In January 2026, Microsoft confirmed that some apps could stop responding when opening or saving files on cloud-backed storage such as OneDrive or Dropbox after the January 13 update (KB5074109 on 25H2). It fixed this in out-of-band update KB5078127 later that month. The listed examples were apps such as classic Outlook rather than File Explorer, but if your trouble started then, current updates include the fix.

Fix 8: Repair Windows system files with DISM and SFC

If Windows’ own files are damaged, Explorer can crash no matter what you change in its settings. Microsoft’s System File Checker page gives the order: first DISM, which repairs the store of clean copies using Windows Update, then SFC, which replaces damaged system files from that store.

1. Right-click Start and select Terminal (Admin) or open Command Prompt as administrator.
2. Run the two commands below, one at a time. Wait for each to reach 100% and don’t close the window early.

DISM.exe /Online /Cleanup-image /Restorehealth
sfc /scannow

Restart when both finish. If SFC reports files it could not fix, our sfc /scannow guide explains each result and what to do next, including running SFC offline from recovery.

Fix 9: Test another user account

Explorer keeps much of its state in your profile: view settings, Quick access pins, recent files and per-user add-ons. To find out whether the fault is in your profile or in Windows, go to Settings > Accounts > Other users, select Add account and create a local test account. Sign in to it and use Explorer for a while.

If Explorer behaves in the test account, the problem lives in your profile, and the fixes above that work per user (Fixes 2 to 5) deserve a second look. If it freezes there too, the cause is system-wide: an app, a driver, damaged system files or an update.

Last resort: undo an update or repair Windows

If the freezes started right after a specific update and nothing above helps, you can remove it from Settings > Windows Update > Update history > Uninstall updates. Treat this as a short-term step: removed security updates come back, and a newer update may already contain the fix, so check for updates again first.

Recent Windows 11 versions also offer Fix problems using Windows Update under Settings > System > Recovery, which reinstalls the current version of Windows while keeping your apps and files. Microsoft’s last step on its File Explorer page is to reset the PC; choose Keep my files, but back up anything important before you start, because apps must be reinstalled afterwards. If Explorer still isn’t reliable, Microsoft asks you to report it through Feedback Hub.

Known issues in 2026

We checked Microsoft’s Windows release health pages for Windows 11 25H2 and 26H1 in November 2026. One 2026 issue involved Explorer directly:

• Black screen or desktop not loading after sign-in. After the August 27, 2026 preview update (KB5120998 on 24H2 and 25H2), some devices showed a black screen after sign-in, and event logs could show Windows Explorer crashes. Microsoft says it was seen mainly on Azure Virtual Desktop hosts using FSLogix profiles. It was fixed in the October 13, 2026 updates (KB5127648 for 24H2 and 25H2, KB5127646 for 26H1). The workaround was to start explorer.exe from Task Manager, as described above.
• Apps hanging on cloud-backed files. The January 2026 OneDrive and Dropbox issue described in Fix 7, fixed in KB5078127.

Both are marked resolved, and as of early November 2026 the status pages list no open File Explorer issue. On home PCs, a freezing Explorer is therefore more likely to come from settings, add-ons, cloud sync or damaged files than from a known Windows bug. If Start also fails and Explorer crashes at sign-in on a managed PC, see the XAML package issue in our Start menu not working guide.

Related guides

• Windows Explorer crashes on right-click: how to find the cause and fix it
• Start menu not working in Windows 11: how to fix it
• How to run sfc /scannow in Windows 11 and 10 (and read the results)
• How to stop OneDrive from syncing (without losing files)

Official sources

• Microsoft: Fix File Explorer if it won’t open or start
• Microsoft: Use the System File Checker tool to repair missing or corrupted system files
• Microsoft Learn: Windows 11, version 25H2 resolved issues