Calendar Launcher Utility
calendar-launcher.exe is safe. It's a legitimate calendar utility that coordinates startup tasks, reminders, and sync operations. It typically runs in the background with low resource use.
calendar-launcher.exe is a lightweight Windows utility that starts and coordinates calendar-related components. It helps initialize the calendar UI, reminders, event sync, and background checks when you sign in or open calendar-enabled apps.
The executable acts as an orchestrator that initializes calendar modules, manages IPC with the calendar core, and schedules background tasks. It uses lightweight sandboxed runners and Windows services to keep reminders and sync up to date.
Quick Fact: Calendar launchers often start before the calendar app UI for faster event rendering and reminder notifications.
Yes, calendar-launcher.exe is safe when it's the legitimate file from a trusted calendar developer downloaded from official sources or installed by the system.
The real calendar-launcher.exe is NOT a virus. However, malware may disguise itself using similar names to trick users.
C:\Program Files\CalendarLauncher\calendar-launcher.exe or C:\Program Files (x86)\CalendarLauncher\calendar-launcher.exe. Any calendar-launcher.exe elsewhere is suspicious.Red Flags: If calendar-launcher.exe is located in unusual folders (Temp, AppData, or System32), runs when you do not use calendar apps, has no digital signature, or uses constant high resources, scan your system with antivirus software immediately.
calendar-launcher.exe runs to initialize calendar components and to support reminders, syncing, and calendar UI updates. It may also run when calendar-related tasks are scheduled or when you sign in.
Reasons it's running:
Yes, you can disable calendar-launcher.exe. It's safe to close calendar apps or disable the startup task, and you can uninstall the calendar launcher if you no longer need it.
If calendar-launcher.exe is consuming excessive resources:
Quick Fixes:
1. Open Task Manager (Ctrl+Shift+Esc) and identify high-usage calendar tasks
2. Pause or disable non-essential calendar integrations
3. Check launcher settings for sync frequency and reminders
4. Update to the latest calendar launcher version
5. Restart calendar services or the computer if needed
No, the legitimate calendar-launcher.exe from a reputable vendor is not a virus. Verify the file is located at C:\Program Files\CalendarLauncher\calendar-launcher.exe and has a valid digital signature.
High CPU typically results from active calendar syncing, large meeting loads, or misbehaving extensions. Use Task Manager to identify the culprit and adjust sync settings or disable the offending component.
If you no longer need calendar integration, you can uninstall Calendar Launcher via Settings → Apps or Control Panel. Your calendar data may remain in the calendar app unless you remove accounts.
Yes. You can disable startup tasks and background behavior via Task Manager → Startup or the launcher’s own settings. You can also quit the calendar app to stop activity.
It may be configured to start with Windows to ensure calendar data is synced and reminders are ready. Disable at Task Manager → Startup or in the launcher settings if you don’t need automatic startup.
Check the digital signature, verify the path, and compare the file hash (e.g., using certutil or sigcheck) against the vendor’s published hash.