Windows 10: That Microsoft account doesn't exist/ something went wrong 0x80048820

I have been using the same Microsoft account for both xbox and Microsoft office for years. I recently made a new email address that i have been using instead of the old one and decided to add it to my account as an "alias". Then i assigned the new email address as my preferred sign in and removed my old email address from the list of aliases because i dont want to use it anymore. Now i can sign in with the new preferred email address on my phone and xbox, but when i try to sign in on my pc windows 10 HP im getting error messages. When i use either one of my email address' it tells me "that m

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Microsoft Teredo Tunelling Adapter doesn´t exist

My teredo tunneling adapter is non-existant on my pc, I´ve tried adding it by legacy hardware but it wasn´t there, I've set DisabledComponents to 0, it doesn´t show up when i view hidden devices and there´s no download for this driver apparently, I´ve
tried a lot of solutions and nothing has worked for me.

Please help me, i can´t play multiplayer games with my friends and neither use party chat on the Xbox App.

 

Windows doesn`t start. Authomatic repair doesn`t work.

Thanks again!!

I`m sorry I had not noticed that the text on the picture was in spanish. It says that windows has replaced some damaged clusters in "name" file and "directory". Then, at the end "an unspecified error occurred (75736e6a726e6c2e 4f6)".

I`ll do it and I`ll be updating this thread when I have the report.

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I ran SeaTools. These are the results:




Does it mean my HDD is useless?

 

hd6950 to hd 6970

ok
i ve tried everything:with atiflash from dos,winflash.step by step with bios powercolor hd 6970 from the database.
nothing,doesn´t work.any suggestion????