Calendar Standalone Scheduling App
calendar-exe-standalone is a compact Windows executable that powers the local calendar experience for the standalone calendar app. It manages event storage, reminder scheduling, time zone conversions, and background synchronization with the calendar service. By design it runs as a separate process to isolate calendar tasks from other apps and system components.
calendar-exe-standalone hosts the calendar module in memory, handling CRUD operations for events, reminders, and invites, while maintaining a small in-process cache and making API calls to the calendar backend when connected.
calendar-exe-standalone is safe when obtained from the official Calendar vendor installer and installed in a standard program folder. It runs under normal OS permissions, uses a digital signature, and executes as a separate, sandboxed process to minimize risk to other applications. If the file is located in a trusted directory such as C:\Program Files\CalendarStandalone and shows a valid publisher, it aligns with standard software behavior and does not access system components beyond its calendar scope.
While calendar-exe-standalone is a legitimate calendar component, malware can masquerade as calendar.exe. If you did not install a calendar app or find the executable outside the expected directory, or if it is unsigned or signed by an unknown publisher, it could be malicious. Always verify the publisher, path, and digital signature before trusting it.
Red Flags: If calendar.exe-standalone is found in a non-default path, signed by an unknown publisher, or shows signs of tampering (unexpected modification date, unusual size changes, or repeated signature errors), treat it as suspicious and isolate the system until a vendor-confirmed version is verified.
Reasons it's running:
It can be disabled by proceeding through the calendar app’s settings or Windows startup configuration, but doing so will prevent background syncing, reminders, and offline access for the standalone calendar. If you disable it, ensure you still have other calendar access (e.g., a web app) to avoid missing events.
calendar-exe-standalone is the lightweight background component for the standalone calendar app. It handles event storage, reminders, and synchronization with the calendar service, running as a separate process to isolate calendar tasks from other applications.
Yes, when obtained from the official vendor and installed in the proper directory, calendar-exe-standalone operates with standard permissions and a valid digital signature. Always verify the publisher and path if you did not install it directly.
The process may run background synchronization, cache maintenance, or notification scheduling. If CPU usage remains high for extended periods, check for stuck sync tasks, network loops, or outdated software and apply vendor updates.
Disabling the process stops calendar syncing and reminders but typically preserves local data in the calendar cache. You should still be able to access calendar data via an alternate method, such as a web client, if needed.
Use the system’s Apps & Features or the vendor’s uninstaller to remove calendar-exe-standalone. After uninstall, verify that the calendar data remains accessible through other calendar services if applicable.
Data and cache are stored in the vendor’s designated app data folders, typically under C:\Users\[YourUser]\AppData\Local\CalendarStandalone or C:\ProgramData\CalendarStandalone, depending on the build and installation options.