Hello Clare Louise,
Thank you for posting your question in the Microsoft Q&A forum. I understand how confusing this behavior is. The cycle of error messages, white pages, and the "Account not found" scare is very stressful, but rest assured, your account likely still exists and is fine.
The key to this issue is the "download pop-up" you described. It looks like your browser (Brave) is having trouble processing the "Sign Out" command from Microsoft. Instead of logging you out, it is trying to download a script file (logoff.owa), which creates a loop where the system thinks you are still signed in.
Since you are using the Brave browser, we need to clear the temporary data causing this conflict. Please follow these steps:
1. Disable Brave Shields for Outlook
Brave's security shields can sometimes be too aggressive and block Microsoft's login/logout scripts.
- Go to the Outlook login page or your inbox (if you can get there).
- Click the Lion Icon (Brave Shields) to the right of the address bar.
- Toggle the switch to DOWN (Off) for this site.
- Refresh the page.
2. Clear Cache and Cookies (Most Important Step)
This will remove the corrupted file that keeps triggering the download and the "too many browsers" error.
- In Brave, click the three dots (menu) in the bottom right corner.
- Go to Settings > Brave Shields & privacy.
- Tap Clear browsing data.
- Set the "Time range" to All time.
- Check the boxes for "Cookies and site data" and "Cached images and files."
- Tap Clear data.
3. Test in Private Mode
If the issue persists, try accessing your email in a Private tab to ensure no other extensions are interfering.
- Click the three dots (menu).
- Select New Private Tab.
- Go to outlook.live.com and try to sign in.
Once you have cleared the data, please close the browser app completely and reopen it before trying to log in again. Please let me know if the "download" pop-up stops appearing after these steps.
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