Windows Logon Error Fix: The User's Requested Logon Type Blocked at Startup

The user has not been granted the requested logon type at this computer—and I’ve seen this error freeze up more workstations than I can count. 💻 Most of the time, it’s not a broken account, but a misconfigured security setting that’s blocking your normal login method.

The fix is usually simpler than it seems, but you’ll need to know where to look.

This error typically pops up when Windows enforces stricter logon policies than your account is allowed to use. It could be a local security tweak, a domain Group Policy, or even a corrupted profile sneaking in.

I’ve fixed it in under 10 minutes by adjusting just a few settings, and I’ll walk you through the exact steps—whether you’re on a standalone PC or a corporate network.

You’ll learn how to safely modify logon types without breaking security, repair a damaged profile if needed, and even bypass the error temporarily if you’re locked out. The best part? These fixes work for both local accounts and domain-joined machines, so no matter where you’re stuck, there’s a solution here.

Fair warning: some of these steps require admin rights, and a few tweaks could have security implications if done wrong. That’s why I’ve included exactly which settings to change—and which to leave alone. Let’s get you logged in again without risking your system’s security.

Root Causes of Logon Restrictions

When you encounter a logon error like "the user has not been granted the requested logon type", it’s usually due to misconfigured security policies, account restrictions, or system-level settings. Below, we break down the most common reasons this happens—so you can pinpoint the exact issue and fix it fast.

Incompatible logon type requested

The error occurs when a user or application tries to log in with a logon type that isn’t permitted by the system or security policies. Windows defines several logon types (e.g., interactive, network, service, batch), and some are restricted for security reasons.

• Example: A scheduled task (logon type Batch) might fail if the account lacks SeBatchLogonRight permissions.
• Why it happens:
  • An application or script is configured to use a logon type (e.g., Network) that the user’s account isn’t allowed to use.
  • The Local Security Policy or Group Policy explicitly denies the requested logon type.
  • A misconfigured RunAs command forces an unsupported logon type (e.g., trying to run a service interactively).
• 💡 Pro Tip: Check the Event Viewer (under Windows Logs > Security) for Event ID 4625—it often reveals the exact logon type being denied.

Account permissions mismatch

User accounts in Windows are tied to specific privileges, and some logon types require elevated rights. If an account lacks the necessary permissions, the system blocks the login attempt.

• Common scenarios:
  • A standard user tries to log in via Network or Service (reserved for admins or services).
  • A domain account lacks Deny logon locally or Deny logon through Remote Desktop permissions.
  • A local admin account is disabled or has its SID corrupted.
• Why it happens:
  • The account is part of a Group Policy that restricts logon methods (e.g., blocking Ctrl+Alt+Del logins).
  • An Active Directory policy (if applicable) enforces logon restrictions for the user or group.
  • The account was manually locked out or has expired credentials.
• 🔍 Debugging Step: Run secpol.msc (Local Security Policy) and navigate to:
  • Local Policies > User Rights Assignment to check for denied logon permissions.
  • Security Options > Devices: Prevent users from installing printer drivers (indirectly related to logon restrictions).

Corrupted or outdated system policies

Windows relies on security templates and Group Policy Objects (GPOs) to enforce logon rules. If these policies are corrupted, outdated, or conflicting, logons may fail unexpectedly.

• How it breaks down:
  • A malicious or misapplied GPO (e.g., from a third-party tool or misconfigured domain policy) blocks certain logon types.
  • A registry corruption in HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon alters logon behavior.
  • An outdated Windows update introduces a bug that conflicts with existing policies.
• 🛠️ Fix It:
  • Run gpupdate /force to refresh Group Policy settings.
  • Check for Windows updates (some errors are patched in cumulative updates).
  • Restore default policies via secedit /configure /cfg %windir%\inf\defltbase.inf /db defltbase.sdb /verbose (use with caution!).

Hardware or driver conflicts

Sometimes, the issue isn’t software at all—it’s hardware-related. Faulty drivers, TPM (Trusted Platform Module) issues, or even BIOS settings can trigger logon failures.

• Key culprits:
  • A corrupt or unsigned driver (e.g., graphics, storage, or network drivers) prevents the system from initializing properly during logon.
  • A disabled TPM module or incorrect Secure Boot settings in BIOS/UEFI.
  • A failing hard drive or RAM causing intermittent authentication failures.
• 🔥 Signs It’s Hardware:
  • The error occurs only on startup (not during regular use).
  • You see STOP errors (BSOD) before the logon screen.
  • The issue persists in Safe Mode (indicating a low-level problem).
• 🛡️ Quick Checks:
  • Boot into Safe Mode with Networking to rule out driver issues.
  • Test RAM with Windows Memory Diagnostic.
  • Check BIOS for TPM and Secure Boot settings (enable/disable and retry).

Third-party security software interference

Antivirus, endpoint protection tools, or even firewall rules can mistakenly block legitimate logon attempts, especially if they’re configured to monitor authentication events.

• How it happens:
  • A strict antivirus (e.g., McAfee, CrowdStrike) flags the logon process as suspicious and terminates it.
  • A host-based firewall (e.g., Windows Defender Firewall with custom rules) blocks the LSASS.exe process.
  • A third-party authentication plugin (e.g., VPN client, biometric software) conflicts with Windows logon.
• 🚨 Red Flags:
  • The error appears after installing new security software.
  • You see warnings from the antivirus GUI about "blocked processes."
  • Disabling the firewall temporarily resolves the issue.
• ✨ Solution: Temporarily disable real-time protection in your antivirus and test. If it works, whitelist LSASS.exe and Winlogon.exe in your security software.

Fixing Logon Errors Step by Step

Encountering a logon error like "the user has not been granted the requested logon type" can be frustrating, but the right steps can resolve it quickly. Below are targeted solutions based on common causes, from simple tweaks to deeper fixes.

Follow the steps that match your situation, and don’t forget the prevention tips to keep issues at bay!

🔧 Fix 1: Check User Account Control (UAC) Settings

If UAC is set too restrictively, Windows may block certain logon types. Here’s how to adjust it:

1. 🔍 Open UAC Settings: Press Win + R, type useraccountcontrolsettings, and hit Enter.
2. 📊 Adjust the Slider: Move the slider to Never notify (temporarily for testing) or a middle setting like Notify me only when apps try to make changes to my computer.
3. ✅ Restart and Test: Reboot your PC and attempt to log in again.

⚠️ Warning: Lowering UAC reduces security. Revert to default settings (Notify me only when programs try to make changes) after testing.

🔐 Fix 2: Modify Local Security Policy for Logon Types

Windows restricts certain logon types (e.g., network logons) via Group Policy. If your account is flagged incorrectly, this can help:

1. 🔑 Open Local Security Policy: Press Win + R, type secpol.msc, and hit Enter.
2. 📋 Navigate to Account Policies: Go to Security Settings > Local Policies > User Rights Assignment.
3. 🔄 Edit "Deny Logon Locally": Double-click Deny logon locally. Remove any suspicious users/groups (e.g., Administrators if misconfigured).
4. 🔄 Edit "Deny Access to This Computer": Repeat for Deny access to this computer from the network if network logons are blocked.
5. ✅ Apply and Restart: Click Apply, then restart your PC.

💡 Pro Tip: If you’re unsure which account is blocked, compare the list with net user (run in Cmd as admin) to spot discrepancies.

🛠️ Fix 3: Reset or Recreate the User Profile

A corrupted user profile can trigger logon failures. Try resetting or recreating it:

1. 👤 Log in with an Admin Account: Use another admin account to access the problematic PC.
2. 🗑️ Delete the Corrupted Profile: Press Win + R, type sysdm.cpl, go to Advanced > User Profiles, select the broken profile, and click Delete.
3. 🆕 Recreate the Profile: Log in with the affected account—Windows will auto-generate a new profile.
4. ✅ Transfer Data (Optional): Copy files from the old profile (e.g., C:\Users\OldProfile) to the new one if needed.

⚠️ Warning: Deleting a profile wipes its settings/apps. Back up critical data first!

🔄 Fix 4: Rebuild the BCD (Boot Configuration Data)

If the error persists during startup, the BCD may be corrupted. Rebuilding it can restore access:

1. 🖥️ Boot from Windows Installation Media: Use a USB/DVD with Windows setup files.
2. 🔧 Open Command Prompt: At the setup screen, press Shift + F10 to open Cmd.
3. 📝 Run These Commands:

   bootrec /fixmbr
   bootrec /fixboot
   bootrec /scanos
   bootrec /rebuildbcd

4. ✅ Restart Normally: Remove the media and boot into Windows.

💡 Pro Tip: If /rebuildbcd lists Windows installations, confirm fixes by typing Y.

🛡️ Fix 5: Disable Third-Party Antivirus Temporarily

Overzealous antivirus software can block logon types. Test this:

1. 🛡️ Disable AV Temporarily: Right-click the antivirus icon in the system tray and select Disable or Pause Protection.
2. ✅ Test Logon: Attempt to log in again. If it works, adjust AV exclusions or switch to a lighter security suite.
3. 🔄 Re-enable AV: Reactivate the antivirus and configure it to allow Windows logon processes.

🎯 Prevention Tip: Add C:\Windows\System32\winlogon.exe to your AV’s exclusion list to avoid future conflicts.

🔄 Fix 6: Use Safe Mode to Diagnose

If standard fixes fail, boot into Safe Mode to troubleshoot:

1. 🔄 Restart and Force Safe Mode: Hold Shift while clicking Restart in the Start menu. Select Troubleshoot > Advanced > Safe Mode.
2. 👤 Log in with the Problematic Account: If it works, the issue is likely a third-party app or driver.
3. 🔍 Run System File Checker: Open Cmd (Admin) and run:

   sfc /scannow

4. ✅ Restart Normally: Exit Safe Mode and test the logon again.

🔥 Troubleshooting Tip: If Safe Mode works but normal mode fails, uninstall recently added software or update drivers.

🛡️ Prevention Tips to Avoid Future Errors

Stop logon errors before they start with these proactive steps:

• 🔄 Regularly Update Windows: Enable automatic updates (Settings > Windows Update) to patch security flaws.
• 🛡️ Use Standard User Accounts: Avoid logging in as Administrator daily to limit malware/driver conflicts.
• 📋 Backup User Profiles: Periodically back up C:\Users\ to an external drive or cloud storage.
• 🔧 Monitor Security Logs: Check Event Viewer > Windows Logs > Security for failed logon attempts (Event ID 4625).
• 🛠️ Test New Software in Safe Mode: Install updates/drivers in Safe Mode first to catch compatibility issues early.

By addressing the root cause

Frequently asked questions