Start Menu and Cortana Not Working: Fixes

If your Start menu won’t open and Cortana is unresponsive or missing, the problem is almost always a corrupted Windows shell component or a conflict with a third-party app, not a hardware failure. You can usually fix it by restarting the Windows Explorer process, re-registering the Start menu and Cortana apps via PowerShell, or creating a new user account if the profile is damaged. Below are the exact steps, ordered from least to most invasive, that resolve the issue in most cases.

Why the Start Menu and Cortana Break Together

The Start menu and Cortana are not separate programs; they are both part of the Windows Shell (explorer.exe) and rely on the same underlying app framework called UWP (Universal Windows Platform). When that framework gets corrupted—often after a failed Windows Update, a disk cleanup that removed cached files, or a registry cleaner that deleted entries—both features fail at once. Another common cause is a third-party shell extension (like a file-compression utility or a theme patcher) that injects code into explorer.exe and crashes it. Because the two features share the same process, fixing one usually fixes the other.

First, Restart Windows Explorer

This is the quickest test and fixes roughly half of all cases. It clears a hung shell process without rebooting your PC.

1. Press Ctrl + Shift + Esc to open Task Manager.
2. Scroll down to Windows Explorer under “Processes”.
3. Right-click it and choose Restart. The taskbar and Start button will disappear for a second, then reappear.
4. Try opening the Start menu. If it works, you’re done. If not, continue.

If Task Manager itself won’t open, press Ctrl + Alt + Del and select Task Manager from that screen.

Re-register the Start Menu and Cortana Apps

This is the most reliable fix for a corrupted UWP app registration. It tells Windows to reinstall the Start menu and Cortana packages from the system image without touching your files.

1. Right-click the taskbar and select Task Manager (or use the shortcut above).
2. Click File > Run new task.
3. Type powershell, check the box Create this task with administrative privileges, and click OK.
4. In the PowerShell window, paste this exact command and press Enter:

Get-AppXPackage -AllUsers | Where-Object {$_.Name -like "*ShellExperience*" -or $_.Name -like "*Cortana*"} | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}

Wait for it to finish (it may take a minute). Then restart your PC. This command re-registers the packages that control the Start menu (ShellExperienceHost) and Cortana. If you get a red error, it usually means the package files are missing entirely, which leads to the next step.

Run the System File Checker and DISM

If re-registering didn’t work, the underlying Windows system files may be damaged. Two built-in tools repair them.

1. Open an elevated Command Prompt (same method as PowerShell above, but type cmd instead).
2. Run sfc /scannow and let it finish. It will replace corrupted system files.
3. Then run DISM /Online /Cleanup-Image /RestoreHealth. This repairs the system image that SFC uses as its source. It can take 10–20 minutes.
4. Restart and test the Start menu.

These two commands fix most corruption-related failures. If they report no issues, the problem is likely your user profile, not the system.

Create a New User Account

A damaged user profile—one where the registry keys for your account are corrupted—can break the Start menu even when the system files are fine. The quickest test is to create a new local account and see if the Start menu works there.

1. Open Settings > Accounts > Family & other users.
2. Click Add someone else to this PC and choose I don’t have this person’s sign-in information, then Add a user without a Microsoft account.
3. Create a username and password.
4. Log into the new account. If the Start menu works, your old profile is the problem.

If you need your old files, you can copy them from C:\Users\YourOldName to the new profile. You won’t be able to transfer installed apps, but you can reinstall them. If the Start menu is broken even in the new account, the problem is system-wide, and the next step is worth trying.

Check for Third-Party Interference

Some utilities are known to break the Start menu and Cortana. The most common culprits are:

• Start menu replacement tools (like StartIsBack or Start11) that hook into explorer.exe.
• Shell extensions from file-compression software (WinRAR, 7-Zip) or cloud storage apps that add context-menu entries.
• Antivirus suites that block PowerShell or AppX registration.

To test, boot into Safe Mode (hold Shift while clicking Restart, then Troubleshoot > Advanced options > Startup Settings > Restart, then press 4). In Safe Mode, third-party drivers and startup apps are disabled. If the Start menu works there, uninstall the most recently installed software that matches the list above, then restart normally.

When to Use a System Restore or Reset

If nothing above works, you have two options. A System Restore rolls back Windows system files and registry to an earlier point, but it only works if you have a restore point from before the problem started. To run it, search for “Create a restore point” in Control Panel, click System Restore, and choose a date before the issue began. This does not affect personal files.

If no restore point exists, the last resort is Reset this PC (Settings > Update & Security > Recovery). Choose Keep my files to reinstall Windows while preserving your documents, photos, and settings. It will remove installed apps, so you’ll need to reinstall them. This fixes essentially every software-level cause of a broken Start menu.

Frequently Asked Questions

Why does the Start menu open but show a blank screen?

A blank Start menu usually means the tile database is corrupted. The PowerShell re-register command above fixes this in most cases. If not, you can delete the tile cache manually: press Win+R, type %LocalAppData%\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\LocalState, and delete the start.bin file. Windows will rebuild it on the next login.

Can I use a third-party Start menu instead of fixing this?

Yes, tools like Open-Shell (free) or Start11 (paid) replace the Start menu entirely and work even when the built-in one is broken. However, they don’t fix Cortana, and they can sometimes conflict with Windows updates. It’s a good temporary workaround, but not a permanent fix for the underlying issue.

Will this affect my files or installed programs?

No. Re-registering apps, running SFC/DISM, and restarting Explorer do not touch your personal files or installed programs. Creating a new user account also leaves your files intact, though you’ll need to reinstall apps for that new account. Only “Reset this PC” removes installed apps, and even then you can choose to keep your personal files.

Why does Cortana disappear from the taskbar even after fixing the Start menu?

Cortana is hidden by default in some regions and on Windows 11. Right-click the taskbar and select Taskbar settings (Windows 10) or Taskbar items (Windows 11), then enable the Cortana toggle. If it’s grayed out, your Windows edition or region doesn’t support it—Microsoft has removed Cortana from Windows 11 in most markets.

Is this a sign of a virus?

Not usually. Malware can cause shell crashes, but the far more common cause is a botched Windows Update or a corrupted profile. If you’re worried, run Windows Defender’s full scan, but don’t assume malware until you’ve exhausted the steps above.

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