Teams
Your chats, teams and channels stay put. Use your new address when Teams asks you to sign in.
Already set up: Teams asks me to sign in
- Sign in with your new address.
If prompts repeat or the old address still shows:
On a computer
- Click your profile picture.
- Choose Sign out.
- Quit Teams fully. On Windows, right-click its tray icon and choose Quit.
- Open Teams again.
- Sign in with your new address.
Screenshot coming: Teams profile menu and Sign out
On a phone
- Tap your profile picture.
- Tap Settings.
- Tap Sign out.
- Sign in with your new address.
Screenshot coming: Teams phone Sign out
If prompts still repeat, contact IT.
Sign in on another device
- Open Teams on the web.
- Sign in with your new address.
For an app already signed in, use the sign-out steps above.

Files says “404 Files not found”
- Create a one-to-one chat with a coworker.
- In the message box, select Actions and apps.
- Choose Attach file.
- Choose Upload from this device.
- Pick a harmless file to share.
- Send it.
- Open the OneDrive app in Teams again.
Screenshot coming: Upload from this device in a chat
My Teams meeting notes are gone
Old notes may no longer open in Teams. Find them in OneDrive:
- Open OneDrive.
- Go to My Files.
- Select Microsoft Teams Data.
- Select Wiki.
- Download your notes.
Screenshot coming: Microsoft Teams Data and Wiki in OneDrive
A chat file from before the weekend won't open
A file shared before the weekend may have an old OneDrive link.
- If you sent it, attach it in the chat again. If someone else sent it, ask them to.
Files in Teams channels aren't affected.
Screenshot coming: attaching a file again in Teams chat
Do my old meeting links still work?
They may keep working. If someone reports a broken link:
- Send a fresh meeting invite.
People outside the company can't find me
Contact IT. Also contact IT if Teams shows an unexpected address that is neither your old nor your new address.
