Critical Software ✓ Solution Verified by Community (30+ upvotes)

Error Code kmode-exception-not-handled — Nitro PDF Pro

Kernel-mode program generated an exception the error handler didn't catch. Usually a driver issue.

✅ 60% úspěšnost
👥 30+ uživatelů ověřilo
📅 Aktualizováno: 2026-08-12
⏱️ 20 min čtení
Oprava založena na komunitních zprávách a expertní analýze. Naposledy ověřeno: 2026-08-12 · Jak ověřujeme opravy
Error Codekmode-exception-not-handled
Affected SystemNitro PDF Pro (Nitro Software)
DifficultyCritical
Estimated Time20 min
Requires Admin Rights⚠️ Yes
Requires Reboot🔄 Yes

Postup řešení

  1. 1 Restart Nitro PDF Pro completely. Close it, open Task Manager (Ctrl+Shift+Esc), find any remaining Nitro PDF Pro processes, right-click → End Task. Background processes from previous sessions are the most common cause of startup crashes.
  2. 2 Update Nitro PDF Pro to the latest version. Open the app, go to Help → Check for Updates (or download the latest installer from the official website). Updates fix known bugs and compatibility issues.
  3. 3 Reset Nitro PDF Pro settings. Navigate to %APPDATA%\NitroPDFPro and rename the settings folder to add '.old'. This forces Nitro PDF Pro to create fresh settings — corrupted config files cause crashes.
  4. 4 Run Nitro PDF Pro as Administrator. Right-click the shortcut → Properties → Compatibility → check 'Run as Administrator'. Some features of Nitro PDF Pro require elevated permissions.
  5. 5 Check if Nitro PDF Pro conflicts with your antivirus. Temporarily disable real-time protection and test. Add Nitro PDF Pro installation folder to antivirus exclusions.
  6. 6 Clear Nitro PDF Pro cache. Navigate to %LOCALAPPDATA%\NitroPDFPro\Cache and delete all files. Corrupted cache data causes rendering and processing errors.
  7. 7 Repair Nitro PDF Pro installation. Windows Settings → Apps → Nitro PDF Pro → Modify → Repair. This replaces damaged program files while preserving your data.
  8. 8 If Nitro PDF Pro still won't work: uninstall from Settings → Apps, restart, reinstall from official website. A clean install is the nuclear option but fixes almost everything.

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