Windows 10: What is the support phone number at Microsoft

I have just spent approximately two hours just trying to get phone number that I can speak to somebody about my problem. My problem is I use a virtual machine test stuff on my main computer. That means that I am changing my virtual machine quite often, I do try to keep the hardware everything the same but you have to with the virtual machine but still sometimes I lose activation. I cannot you to spend hundreds hundred dollars buying new activation codes I just can't do that anymore. I would estimate that in the past two or three years I have spent over $5000 buying activation for Microsoft I c

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Number to call for phone support?

Is there a specific number I can call to talk to Microsoft about Windows Phone 7? I didn't see any number for phone support for Windows Phone 7.

 

Supported phones for Windows 10 Mobile Insider Preview Mobile

Your list confirms my phone is eligible, Lumia 521. The windows Insider App fails after ~ 15 seconds, restores data and gives me error 80073cf9. I trouble shot this and went thru all the steps mentioned on several websites including MS without any luck. Short of a hard reset, this is where I am now. Suggestions appreciated.

 

Microsoft account and phone number linked

Microsoft account password recovery requires two verification codes being sent using two different verification methods. Each Microsoft account has at least two verification methods, the phone number and additional email address which are asked and required when you set up a new Microsoft account with a new hotmail.com or outlook.com email or using a third party email.

When the thief who got your phone tries to recover your password, all your verification methods / security info phone numbers and email addresses will be listed for him to select one. OK, the thief naturally selects your phone number, gets the code sent as a text message, and enters it.

But, clicking Next after entering the code he needs to select another security info contact (phone / email) from the list to receive second verification code.

Password recovery is not possible with just your phone, the system is clever enough to make it impossible by requiring two codes being sent to two different phones and / or emails.

You can add as many phone numbers and email address as you wish as security info contacts at https://account.live.com/proofs/mana...&refp=security. I wholeheartedly recommend that you add at least another security email address; if you only have one phone number and one email added, those which were required when you set up the Microsoft account, and that thief got your phone, the recovery would be as impossible to you as it is to him, you both having access to just one of required two verification methods.