Windows 10: Accidentally Microsoft 2FA

I accidentally deleted my Microsoft 2FA from my phone and have tried multiple times to recover it, but it’s impossible. Because of this, I can’t access many apps. I have a linked Microsoft account, but I still can’t recover it. How to sold this problem?* Changed to a question & moved from Community Center

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Authy Alternatives for 2FA?

thanks again for the detailed replies. - - - Updated - - - i'm a bit confused about the bitwarden site, Field Guide to Two-Step Login | Bitwarden Help Center they suggest using Authy themselves, lol, but it seems to suggest the 2FA 6-digit code is only available on their mobile app? or do they mean you just need it on the phone to scan the QR?

 

Grandparents Account Locked 2FA set to Landline

Good morning,

My grandparents have locked the Microsoft account and are unable to receive the 2FA code. Apparently they got confused when setting 2FA and entered their landline which can't receive text messages. I'm not seeing any other option to send the code to their email for verification.

Account recovery seems to be denied because 2FA was enabled. What next steps can we take?

 

2FA not asked when I logon to my laptop

I saw a lot of unsuccessful login attempts all over the world on my account, so I decided to apply 2FA and I installed MS Authenticator.

But when I logon to my laptop (the one from which I lauched the MS A. installation) , I log in by simply typing my password, 2FA is not applied.

I think that this is because this laptop is considered a prefered device and so 2FA is not applied here, but not sure .

When I go to https://account.microsoft.com/devices, my laptop is listed and when I go to the Additional Security Options in the Security tab, Two-step verification is turned on indeed.

And indeed, when I use another device, like my phone to start f.i. MS To Do, it DOES ask for MS A. confirmation, so there 2FA seems to work.

Now I am wondering whether 2FA was indeed set up correctly and my statement about the prefered device is correct, or whether I did sth. wrong.

I never used 2FA before and I don't know what to expect, so sorry if this is a stupid question.