Windows 10: Microsoft Says account doesn't exist

I recently purchased a new laptop. When I try to access my account from the new laptop it says "That Microsoft Account doesn't exist. Enter a different account or get a new one." I have been using this account for a few years and am now stuck. HELP

:)

 

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.

- - - Updated - - -

I ran SeaTools. These are the results:




Does it mean my HDD is useless?

 

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.

 

Strange Windows 10 User Account issue.

Unfortunately I had done those steps numerous reboots, it just, reappears for no good reason. The base account isn't even a Microsoft account, it's a local account.

I haven't quite tried the built in administrator account on W10, but so far in my experience on my own computer, the built in account seemed to have absolutely no more control than I did on my own.

It's just strange, I go in, it warns me twice about deleting the account, then it's gone. Reboot, and it's back?

EDIT: Just to specify, both command line and Netplwiz both say only HIS account exists on the computer, it doesn't list this rogue account. This is what I meant in my first post about the fact that even Windows doesn't seem to believe it exists, HALF the time. *Frown