Hi lou_995,
We apologize for any inconvenience. Let me assist you with editing your groups on Outlook.com.
We would like to check if it is a browser issue that is causing the problem that you are encountering.
We advise that you optimize your browser to make sure that it isn’t contributing to this issue. This will also serve as an initial troubleshooting to clean up cookies and browsing history and also improve browser performance.
For Internet Explorer, you can simply press (Ctrl + Shift + Del) key, check all the boxes when Delete Browsing History windows pop up. Click Delete and then OK.
For other browser, please refer to this link.
If optimizing the browser does not work, get back to us with answers to these questions so we can isolate the issue.
• Do you receive any error message when you try to edit your groups?
• Does the issue also occur when you try accessing your account from the same computer using a different browser?
• Have you tried using a different computer?
Thank you.
Johan