Write a support/help page for the URL path /help/startup-failed on a system cleaner app called Kudu (usekudu.com). The page should explain why the "Run at startup" toggle can fail on Windows and how to fix it.

Context for the AI:

• Kudu uses Windows Task Scheduler (schtasks /Create) to register a logon-triggered task called "KuduStartup"
• The app's exe manifest is requestedExecutionLevel: requireAdministrator, which means the HKCU Run registry key approach does NOT work (Windows silently skips Run-key entries for admin-manifest executables)
• The app already runs elevated (UAC prompt on launch), so the failure is NOT a simple permissions issue
• Common causes of failure: group policy restrictions on task creation, antivirus/endpoint protection software blocking schtasks, restricted enterprise environments (Citrix, terminal services), corrupted Task Scheduler service

Page should include:

1. A brief explanation of what happened (the startup toggle failed because Kudu couldn't create a scheduled task)
2. A numbered list of troubleshooting steps:
   • Check if Task Scheduler service is running (services.msc → "Task Scheduler" → should be Running/Automatic)
   • Check if group policy blocks task creation (corporate/managed machines — contact IT admin)
   • Temporarily disable antivirus and retry (some AV blocks schtasks for non-whitelisted apps)
   • Try creating the task manually: open Task Scheduler → Create Task → set trigger to "At log on" → set action to the Kudu exe path with --startup argument → set "Run with highest privileges"
   • As a last resort, reinstall Kudu and ensure you click "Yes" on the UAC prompt during first launch
3. A "Still not working?" section pointing users to open a GitHub issue or contact support
4. Keep the tone friendly, concise, and non-technical where possible. Use screenshots or step descriptions rather than command-line instructions where feasible.