Pianificazione e gestione degli eventi con il calendario di Outlook.com
Thanks for sharing the details! You have more control when deleting this using the desktop outlook app. Do you have that installed? If yes,
Open Outlook Desktop → Calendar.
Switch to List view:
- View tab → Change View → List.
Sort by Subject or Start date.
Select all duplicates or the series → Shift + Delete (permanent delete).
Empty the Deleted Items folder (Shift + Delete) and restart Outlook.
See if this helps. If you need further assistance just let me know.
Best regards,
Kimberly