* On a PC with Outlook 2016 or later, Reminders are called Tasks. Make sure that you haven't exceeded your iCloud storage limit or the storage limits for iCloud Contacts, Calendars, and Reminders. The app is not permitted to access the Calendar As it turns out, one fairly common situation that might cause this behavior on Windows 10 is if the Calendar app is hindered by a privacy setting that is preventing it from syncing data.Check that you can access secure websites. Open Safari and go to your Apple ID account page. If the website won't open, contact your Internet service provider for help.Open Safari and go to you can’t open the page, learn what to do.

Then, check that you turned on Contacts, Calendars, and Reminders* in your iCloud settings. Click the Start menu button and then select the Store tile to open that app. Press the Cortana button on the taskbar, and enter services in the search box. Make sure that you're signed in to iCloud with the same Apple ID on all of your devices. How do I fix my calendar on Windows 10 1.Make sure that the date and time settings on your iPhone, iPad, iPod touch, Mac, or PC are correct.If a reminder isn't showing up on some devices, make sure that you're running the latest iOS, iPadOS, or macOS on each device. Upgraded reminders and shared reminders in iOS 13 or later or macOS Catalina or later aren't compatible with earlier versions of iOS or macOS.Some reports state that the calculator only doesn’t work for. Windows 10 Calculator not working for one user or administrator. We suspect that this is due to corrupted files being present in your system. There’s an issue in which the calculator does open, but it closes immediately after. Check the system status of iCloud Contacts, Calendars, and Reminders. Windows 10 Calculator opens then closes immediately.Check if you still need help after each of the steps below.

Windows 10 calendar app not working