My friend's Microsoft account can't be sign in.

Since this thread is in the Thai (th-TH) locale, but your question is written in English, I’ll reply in English for convenience. Please feel free to let me know if you prefer discussing in Thai.

Hello Silver Last

From your description, after entering the correct Microsoft account username and password, your friend is still unable to sign in and see a message that there is a temporary problem with the service...

You can try signing in from a mobile device using mobile data first. This can help check whether the problem is specific to the PC, browser/app, or current network.

You may also go to Additional security options. If Passwordless account is enabled, try turning it off temporarily, then test the sign-in again.

Another community-shared workaround is to check whether the sign-in error page still allows you to open the Account section (at the top left of your screenshot). So, if you can still select account from that page, please check whether your Microsoft account profile details are complete.

If the account page cannot be opened at all, this workaround may not apply. In that case, please use the Microsoft account sign-in helper for further account-side checking.

Please let me know how it goes after trying these steps, and I'll be glad to continue looking into it with you.

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