icloud deleted Outlook Calendar and contact

Hi 4llsh00kup,

Thank you for participating in the Apple Support Communities. We understand you're missing your Outlook calendar and contacts after syncing with iCloud. This article has some helpful information about additional accounts such as Outlookl: If your iCloud Contacts, Calendars, or Reminders won’t sync.

"

Microsoft Windows 

After each step, check your contacts, calendars, or reminders.

Refresh Outlook

Click Refresh  in Outlook.

Turn off iCloud Contacts and Calendar, then turn it back on

1. Open iCloud for Windows.
2. Deselect Mail, Contacts, and Calendars, then click Apply.
3. Wait a few seconds, select Mail, Contacts, and Calendars, then click Apply.
4. Open Outlook.

Make sure the iCloud Outlook Add-in is active

In Outlook 2010 and later:

1. Click the File menu.
2. Click Options in the left panel.
3. Click Add-Ins in the left panel of the Outlook Options window.
4. Look at the list of add-ins in the Active Application Add-Ins section.
5. Select the iCloud Outlook Add-in.

Learn how to manage Add-ins with Microsoft Outlook.

Check your default account in Outlook

In Outlook 2010 and later:

1. Click the File menu.
2. Select Info > Account Settings > Data Files. 
3. If iCloud is the default account in the Comments column, select a different account, and click Set as Default.

Restart your computer

After you restart your computer, check if you fixed the issue.

If you still need help

If you still need help, contact Apple Support.

"

If your content was accidentally removed in Outlook, we notice Microsoft has this article here: Recover deleted items in Outlook for Windows

We hope this helps.

Take care.