The Start menu Critical Error in Windows 10/11 may happen due to Registry permission issues and corrupted system files. To fix it, restart Windows Explorer, re-register the Start menu, run DISM & SFC, uninstall the recent Windows update, and reset Windows.

About Windows 10/11 Critical Error Start Menu Isn’t Working

The Critical Error is a common Windows 10/11 issue in which the Start menu, taskbar, or Cortana becomes unresponsive. It often displays a message to sign out to fix it, such as:

1. Critical Error – Your Start menu isn’t working. We’ll try to fix it the next time you sign in.

2. Critical Error – Start menu and Cortana aren’t working. We’ll try to fix it the next time you sign in.

This error often occurs after updating or installing new software, rendering the UI unresponsive. Additionally, it can be caused by the following reasons:

  • Registry permission issues
  • Corrupted system files
  • Faulty updates
  • Third-party software conflicts
  • Failed user profile
  • Failed app updates/installations

Back Up Data Before Solving Windows 10/11 Critical Error

Before applying the solutions to fix the Windows 10 Start menu error, it is essential to back up your important data since some solutions may lead to file loss.

To do that, it is highly recommended to use MiniTool ShadowMaker. This PC backup software is widely compatible with Windows 7/8/8.1/10/11 and is good at file backup and Windows backup.

Here’s how to use this software to back up files:

Step 1. Download and install MiniTool ShadowMaker on your PC. Then, launch it.

MiniTool ShadowMaker TrialClick to Download100%Clean & Safe

Step 2. Navigate to the Backup page, go to SOURCE, and click Folders and Files.

The interface of MiniTool ShadowMaker with selected Folders and Files.

Step 3. Choose the files that you want to back up and click OK.

Step 4. Go to DESTINATION, select the backup destination, and click OK.

Step 5. Click Back Up Now and OK to confirm.

The interface of MiniTool ShadowMaker with selected Back Up Now and OK.

How to Fix Critical Error in Windows 10/11

If you are not sure which fix to try, check the table below to find the right solution quickly.

SituationRecommended Fix
The Start menu suddenly stops workingRestart Windows Explorer
The Start menu always doesn’t workRe-register Start menu components
Critical Error started after a Windows updateUninstall the recent update
The issue appeared after installing a programRemove the conflicting software
Windows also shows other system errorsRun DISM and SFC
The problem started recentlyUse System Restore
None of the fixes workReset Windows

Start with the simple fixes, then move to advanced troubleshooting tips to resolve Windows 11/10 Critical Error.

Immediate & Short-Term Solutions

If you want to get rid of the Windows Start menu not working error immediately on your PC, try the following solutions.

Solution 1. Restart Windows Explorer

Windows Explorer (explorer.exe) manages the taskbar, desktop, and file navigation. If any of these elements freeze, restarting the explorer.exe process in Task Manager often fixes the issue. Here’s how to do that:

  1. Press Ctrl + Shift + Esc to open Task Manager.
  2. In the Processes tab, find Windows Explorer.
  3. Right-click it and select Restart.
  4. Now, open the Start menu again to check if the error persists.

Solution 2. Sign Out and Back in Your Account

A temporary glitch with your account may also cause the Windows 10/11 Start menu Critical Error. To fix this error, try signing out of your account and then back in. Here’s how to perform that:

Note:
To launch the Shut Down Windows dialog via the Alt + F4 shortcut, you must be on the desktop.
  1. Press Alt + F4 to open the Shut Down Windows dialog.
  2. Choose Sign out from the drop-down menu and click OK.
  3. Wait for a few seconds. Then, sign in again to your account.
  4. Check if your fix the error successfully.
The Shut Down Windows dialog with selected Sign out and OK.

Solution 3. Re-register Start Menu Components

Re-registering the Windows Start menu fixes unresponsive, broken, or missing Start menu issues. Follow these steps:

Step 1. Open Task Manager and click Run new task.

Step 2. Type powershell and check the Create this task with administrative privileges box.

The Create new task window with entered powershell and checked Create this task with administrative privileges.

Step 3. Copy and paste the following command in the prompted window and press Enter:

Get-AppxPackage Microsoft.Windows.ShellExperienceHost | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register “$($_.InstallLocation)\AppXManifest.xml”}

The interface of Administrator: Windows PowerShell with the re-register Start menu command.

If you receive the error message “Critical Error – Start menu and Cortana aren’t working. We’ll try to fix it the next time you sign in.”, continue and execute the following command in Windows PowerShell.

Get-AppxPackage -AllUsers Microsoft.549981C3F5F10 | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register “$($_.InstallLocation)\AppXManifest.xml”}

Step 4. Restart your computer and check if the error has been resolved.

System Maintenance Solutions

The following are some system maintenance solutions to the Start menu Critical Error in Windows 10/11.

Solution 1. Run DISM and SFC

This Windows 10/11 Start menu Critical Error can also occur due to corrupt system files. To fix this issue, run DISM first, then SFC.

DISM repairs the underlying Windows component store. SFC restores missing or damaged protected system files.

Step 1. Press Win + S to open Search, type cmd, right-click Command Prompt under Best Match, and then select Run as administrator. Click Yes in the User Account Control window.

Step 2. In the pop-up window, initiate a DISM scan by running the command below:

DISM.exe /Online /Cleanup-Image /RestoreHealth

Step 3. Once completed, type sfc /scannow and press Enter. Restart your computer and check if the error is fixed.

Solution 2. Install the Recent Windows Update

Microsoft releases updates for Windows OS regularly to patch security vulnerabilities, and improve system performance. An outdated Windows may cause the Start menu not working error easily.

To resolve that, install the recent update with the following steps:

Step 1. Press Win + R to open Run, type ms-settings: and press Enter.

Step 2. In Settings, select Windows Update and click Check for updates.

The Windows Update page in Settings with selected Check for updates.

Step 3. Download and install any available updates and restart your computer if prompted to apply them.

Solution 3. Uninstall Recent Updates

If the Start menu Critical Error in Windows 10/11 occurs after an update, the faulty update can be the culprit. Uninstall it with the following steps:

Step 1. Open Search, type control panel, and press Enter.

Step 2. Set View by to Large icons and select Programs and Features.

The Control Panel window with selected Programs and Features.

Step 3. Click View installed updates from the left panel.

Step 4. Find and locate the latest update from the list and click Uninstall next to it.

Step 5. Click Uninstall in the prompted Uninstall this update window.

The Uninstall Updates page and the Uninstall this update window with selected Uninstall.

Solution 4. Remove Conflicting Software

Sometimes, apps like Dropbox or third-party antivirus software can cause this error. Uninstalling it may resolve the Start menu Critical Error in Windows 10/11. Here’s the guide to uninstall Dropbox:

Step 1. Open Settings, go to Apps > Installed apps.

The interface of Settings with selected Apps and Installed apps.

Step 2. Find Dropbox from the list, click the three dots next to Dropbox, and choose Uninstall.

Step 3. Follow the on-screen instructions to complete the uninstallation process.

Now, check if the error has been resolved. If not, uninstall other third-party apps or antivirus software.

Solution 5. Perform a Clean Boot

A clean boot starts the system with minimal drivers and startup programs to isolate software conflicts. If you don’t know which app causes the Start menu Critical Error in Windows 10/11, perform a clean boot on the computer. Here’s the tutorial:

Step 1. Type msconfig in Run, and click OK to open System Configuration.

Step 2. Go to the Services tab and check the Hide all Microsoft services option. Then, click Disable all and click Apply.

The interface of System Configuration with checked Hide all Microsoft services and selected Disable all.

Step 3. Go to the Startup tab and click Open Task Manager.

Step 4. Right-click the startup apps you suspect and select Disable. Then, exit Task Manager and click OK.

Then, your computer will restart into a clean boot environment.

If the issue disappears, the issue is related to third-party software or service. Identify the culprit and uninstall the software, then boot Windows to the normal state.

Clean Boot Windows 11/10: What’s It? How to Perform? Full Guide!
Clean Boot Windows 11/10: What’s It? How to Perform? Full Guide!

A clean boot helps identify third-party software conflicts. Learn how to perform a clean boot, how to find the problematic item, and more.

Read More

Advanced Troubleshooting Fixes

The following are last resorts to troubleshoot the Windows 10 Start menu Critical Error:

Solution 1. Create a New User Account

A corrupted user account may trigger the Windows Start menu Critical Error as well. To fix this, create a new user account and check if the Start menu works in this account. Here’s how to do that:

Step 1. Open Settings and go to Accounts.

Step 2. Scroll down and select Other users (or Family & other users in some versions). Then, click the Add account button.

The Accounts page of Settings with selected Add account.

Step 3. Follow the on-screen guide to enter the credentials of the account to proceed.

Note:
If you want a local account, click I don't have this person's sign-in information, then select Add a user without a Microsoft account. Then, enter credentials.

Step 4. Change Account Type to Administrator.

  1. Click the down arrow next to the new account under Other users.
  2. Click Change account type.
  3. Under Account type, select Administrator and click OK.

Step 5. Sign out of your original user account and sign in with the new account. Then, check if the error is fixed.

If the menu works on a new profile, your original user profile may be corrupted.

Solution 2. Perform a System Restore

System Restore is a Windows feature that can revert system files, registry keys, installed apps, and drivers to a previous working state without affecting personal files.

If you have created a restore point before you encounter the Windows 10 Start menu error on your PC, try this method:

Step 1. Open Settings, go to System > About. Then, scroll down and select System protection.

Step 2. In the pop-up window, click Next.

Step 3. Select a proper restore point from the list and click Next.

Step 4. Confirm your restore point on the next page. Then, click Finish and Yes sequentially to proceed.

The interface of System Restore with selected Finish and Yes.

Solution 3. Reset PC

If none of the above solutions can help you resolve the Windows Start menu Critical Error, resetting the PC can be the final option.

This operation reinstalls Windows and can remove apps and settings.

Tips:
Back up important files before resetting to prevent data loss, although you choose to keep your personal files.

Step 1. Open Settings and go to System > Recovery.

Step 2. Locate the Recovery options section. Then, click the Reset PC button next to Reset this PC.

The Recovery page of Settings with selected Reset PC.

Step 3. In the Choose an option window, choose the option you like:

  • Keep my files: Removes apps and settings, but keeps your personal files.
  • Remove everything: Removes all of your personal files, apps, and settings.
The Choose an option page of Reset this PC.

Step 4. Choose a method from Cloud download and Local reinstall to reinstall Windows.

The Cloud download or Local reinstall page of Reset this PC.

Step 5. Follow the on-screen guide to complete the resetting process. Once done, launch the Start menu again and check if the error is fixed.

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Wrapping Things Up

By following the above guide, you should be able to fix the Critical Error on your Windows 10/11.

Backing up data with MiniTool ShadowMaker before performing advanced methods is necessary. If you have any questions when using MiniTool software, you can directly contact our support team via [email protected].

Critical Error FAQ

What does the Windows Start Menu Critical Error mean?
Windows Critical Error means the Start menu or related components have stopped responding properly.
What should I do if the Start menu problem started after a Windows update?
If the Start menu problem occurs immediately after an update, uninstall the recent update to resolve it. Or, you can install available Windows updates that may include the bug fixes for the known issues.
Why does the Start Menu Critical Error happen only on one user account?
If the Start menu works normally when signing in with another account, the problem may be related to the original Windows user profile. Creating a new user account can resolve this issue.
Will fixing the Start Menu Critical Error delete my files?
No, standard methods for fixing the Critical Error don’t delete your personal files. If you reset your PC and choose Remove everything, your files will be deleted.
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