The App Store keeps old OS X installers available under the Purchased tab. Since this isn’t working for Patrick, the better course is to create on another Mac a bootable Yosemite installer. To import some calendar events, you need an.ics file. If you use a phone with Windows 10 Mobile, you should put.ics file in your Photos folder. If you don't have an.ics file exported from another app, then Calendar Restore can't import anything for you. Please, set a proper rating, since a missing.ics file is not a fault of Calendar Restore. In the Calendar app on your Mac, click the calendar’s name in the calendar list. If you don’t see the calendar list on the left, choose View Show Calendar List. Choose File Export Export. Choose a location, then click Export. The events are exported to a calendar (.ics) file.
Then import the calendar from the corresponding ICS file by double-clicking it. Follow the prompts to import the new events to the calendar you just created.
For calendars that you don't want to sync, just import them again. They'll appear in the calendar list under On My Mac. App that deletes text messages.
*If you don't see the contextual menu item, copy the selected text to the Clipboard by pressing the key combination command-C. In the Finder, select
Go ▹ Go to Folder..
from the menu bar and paste into the box that opens by pressing command-V. Apps for mac. You won't see what you pasted because a line break is included. Press return.