ThisCalculator

Everyday

Windows 10 File Explorer Won’t Open? Fixed

Updated · Standard formula, shown below

Windows 10 File Explorer Won't Open? Fixed

If Windows 10 File Explorer won’t open, the fix usually involves restarting the process, checking for corrupted system files, or clearing the thumbnail cache. This guide walks through the most common causes and step-by-step solutions to get File Explorer working again.

Why File Explorer Stops Opening

File Explorer is a core Windows process, so when it fails, it’s often due to one of a few underlying issues. The most frequent culprits include a hung Explorer.exe process, corrupted system files, a problematic third-party shell extension, or a damaged thumbnail cache. Less common but still possible are issues with the Quick Access view, display driver glitches, or a pending Windows update that has left the system in an unstable state.

Understanding the root cause helps you choose the right fix. For example, if Explorer crashes only when you open a specific folder, a shell extension is likely the problem. If it fails immediately after login, it might be a corrupted system file or a startup program interfering.

Quick Fix: Restart Explorer.exe

The fastest way to resolve a temporary File Explorer hang is to restart the Explorer process. This doesn’t delete any files or settings; it simply closes and reopens the Windows shell (which includes the taskbar, Start menu, and File Explorer).

  1. Press Ctrl + Shift + Esc to open Task Manager.
  2. Scroll down to Windows Explorer under the Processes tab.
  3. Right-click it and select Restart. The taskbar and desktop icons will disappear briefly, then return.

If that doesn’t work, you can also try killing the process and starting it again:

  1. In Task Manager, right-click Windows Explorer and choose End task.
  2. Click File > Run new task, type explorer.exe, and press Enter.

This solves many temporary glitches, but if Explorer fails to restart or crashes again, move on to the next steps.

Run System File Checker and DISM

Corrupted system files can cause File Explorer to fail repeatedly. Windows includes two built-in tools to find and repair these files. Run them in order, as DISM fixes the underlying system image that SFC relies on.

  1. Open the Start menu, type cmd, right-click Command Prompt, and select Run as administrator.
  2. First run DISM: type DISM /Online /Cleanup-Image /RestoreHealth and press Enter. This may take several minutes.
  3. After DISM completes, run SFC: type sfc /scannow and press Enter. This also takes time.
  4. Restart your computer after both commands finish.

If SFC reports that it found and repaired corrupted files, try opening File Explorer again. If it says it couldn’t fix some files, you may need to consider a Windows repair install or reset (see the FAQ below).

Clear the Thumbnail Cache

A corrupted thumbnail cache is a surprisingly common cause of File Explorer freezing or failing to open, especially if the problem occurs when browsing folders with images or videos. Clearing this cache is safe – Windows will rebuild it automatically.

  1. Open This PC (if you can) or press Win + R, type cleanmgr, and press Enter.
  2. Select the drive where Windows is installed (usually C:).
  3. Click OK, then wait for the scan to finish.
  4. In the list, check Thumbnails. You can also check Temporary files if you want to free up more space.
  5. Click OK and then Delete Files.

Alternatively, you can clear the cache manually by deleting the contents of the %localappdata%\Microsoft\Windows\Explorer folder (but don’t delete the folder itself). After clearing, restart your PC.

Check for Conflicting Shell Extensions

Third-party programs (like cloud storage apps, antivirus tools, or archive utilities) add shell extensions to File Explorer’s context menu. A buggy or outdated extension can cause Explorer to crash or fail to open. You can identify the culprit using a free tool called ShellExView (from NirSoft), but a simpler approach is to perform a clean boot.

  1. Press Win + R, type msconfig, and press Enter.
  2. Go to the Services tab, check Hide all Microsoft services, then click Disable all.
  3. Go to the Startup tab and click Open Task Manager.
  4. Disable all startup items, then restart your PC.

If File Explorer works in this clean boot state, re-enable services and startup items one by one until you find the problematic one. Once identified, update or uninstall that software.

Create a New User Profile

A corrupted user profile can also break File Explorer. If the issue only happens for your user account (and not for another account on the same PC), creating a new user profile is a reliable fix.

  1. Go to Settings > Accounts > Family & other users.
  2. Click Add someone else to this PC and follow the prompts to create a new local account.
  3. Log into the new account and check if File Explorer opens.

If it works, you can migrate your files and settings to the new profile. This is a bit of work, but it avoids a full Windows reset.

When to Use a Windows Repair Install

If none of the above steps work, the issue is likely deeper in the Windows installation. A repair install (also called in-place upgrade) reinstalls Windows while keeping your files, settings, and installed programs. It’s more thorough than SFC/DISM and can fix many persistent system file issues.

  1. Download the Windows 10 Media Creation Tool from Microsoft’s official website.
  2. Run the tool and select Upgrade this PC now.
  3. Follow the prompts; when asked, choose to keep personal files and apps.

This process takes about an hour and will require a restart. It’s a safe step before considering a full reset, which would remove your installed programs.

Frequently Asked Questions

Why does File Explorer keep crashing when I right-click?

Right-click crashes are almost always caused by a third-party shell extension. Use ShellExView to disable non-Microsoft extensions one by one, or perform a clean boot as described above to isolate the culprit. Also, make sure your graphics drivers are up to date, as some extensions rely on GPU acceleration.

Can a virus cause File Explorer not to open?

Yes, malware can disable or corrupt Explorer.exe or modify registry keys that control it. If you suspect an infection, run a full scan with Windows Defender or a reputable third-party antivirus. You can also check the registry key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon – the Shell value should be explorer.exe.

Will resetting Windows 10 fix File Explorer?

A full reset (Settings > Update & Security > Recovery > Reset this PC) will almost always fix File Explorer, but it removes all installed programs and may delete personal files if you choose that option. Try the other fixes first, and use a repair install as a middle ground.

Why does File Explorer open slowly even after fixing it?

Slow opening is often due to a large number of files in a folder, network drives that are unreachable, or too many startup programs. Disable unnecessary startup items, and try turning off Quick Access recent files (View > Options > Privacy). Also, check if your hard drive is nearly full – low disk space can slow everything down.

Is there a way to open File Explorer from the command line?

Yes, you can open File Explorer by typing explorer in Command Prompt or PowerShell. You can also open a specific folder by typing explorer C:\Users\YourName. If the GUI doesn’t open, this command might still work, which helps you access your files.

Does Windows 11 have the same File Explorer problems?

Windows 11 uses a different File Explorer codebase, but many of the same issues (shell extensions, corrupted cache) can still occur. The solutions are similar, though the menu options may look different. The SFC/DISM and clean boot steps work identically in both versions.

Related

Method: the standard formula for this calculation, rounded as each result states. See how the calculators work or report an error.