Scheduling and managing events using Outlook.com calendar
Open your Outlook Calendar and locate the bi-weekly meeting. Double-click the meeting to open it. Next, choose to edit a single event, the entire series, or this and all following events. Editing a single event changes only that occurrence. Editing the series changes the meeting time or recurrence pattern for all occurrences, including past meetings. Editing this and all following events changes the selected occurrence and future meetings while leaving past meetings unchanged.
Adjust the date or time fields as needed. If you need to change the recurrence interval, click the Recurrence button on the ribbon and verify that the meeting is set to repeat every two weeks.
Change a recurring event you created in new Outlook
On the calendar grid, double-click a meeting you've created to open it.
You'll have the following options:
- Edit the one event in the series - make changes to this one instance.
- Edit series - make changes to the entire series.
- Edit this and all following events - make changes to this and all following instances of the event.
- Edit series - make changes to the entire series.
You also have the option to press and hold (or right-click) the event to select Edit or Cancel from the context menu.

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hth
Marcin