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Other Email blocked after Win 11 upgrade.
What’s likely happening is that your Microsoft account recovery process is stuck in a loop after the Windows 11 upgrade, and the text verification system isn’t working properly for your phone. Since the "temporary problem" message has been showing for months, it’s not just a short-term glitch. The best thing to do is go to the Microsoft Account Recovery page (https://account.live.com/acsr) and fill out as much information as you can, even partial old passwords or folder names help. Make sure you provide a different contact email that you can access right now. It’s definitely a hassle, but using the recovery form and direct support is the best path forward to get your accounts back.
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