Windows 10: How do I take my younger brothers things off my email without deleting anything?

My younger brother has been using my personal email as his email for his user account, and i don't know how to change it off to his own email, whilst not deleting any of his stuff it's connected to his OneDrive. The email is an @gmail account. Also if possible, I would also like to know how he can transfer/set up his OneDrive and other things connected on his own email?

:)

 

How to delete suggested email addresses in Windows 10 APP 2023

There are tons of suggested email addresses that show up in a drop down menu when I am starting to type an email address into the "To:" field, when composing a new email, in Windows 10 app. They are not listed on my contacts. How can I delete these so that only the ones I use often show up? Redirecting.
This thread is obsolete, and the steps DO NOT apply.

When following step 1) you begin typing the email address to have the suggested emails pop up - and you cannot right click, select, open contact properties at all.

When following step 2) This step is entirely ignorant of the fact that these "suggested" emails that pop up - are NOT in the contacts list.

Can someone please explain how to remove this woefully annoying "Suggested" contact, with a current method, please?

 

Security settings

So my Microsoft account linked to my email is listed as a child under my YOUNGER brothers account. i built my own PC and i want to change settings and delete folders but i cant to it because I don't have that permission. i am listed as a child because i
created a Microsoft account to play a stupid game of COD zombies as an extra account. my brother forgot the password to his email, the email to restore his email, and the email to restore the restore email! i have worked for two and a half hours trying to
troubleshoot and this is the problem but i cant fix it. all the accounts on the family are younger than me, I don't even know how it came to be that we are listed as a family. i have no idea what to do, please help asap.

TL;DR account with lost password (restore password gmail were burner account my brother made when he was 10) is parent over the actual parents account (listed child), need way to remove myself or become parent over my 2 younger brothers.

 

deleted emails

Hi Myrna,

There are some factors that we need to consider regarding your concern about deleting all the emails depending on the mail app you are using. To properly diagnose this issue, We would like to know more about the issue by asking the following questions below:

• Do you use an Outlook application or Windows mail app?
• Are you trying to delete all the emails from your mail app and your email server?

We also suggest that you follow the steps provided in this
article to select all emails and delete it.

Update us with the result, so we can further assist you.