Windows 8 sign in error code: 0x80070426

while switching or creating a new user account on Windows 8 it is unable to sign in. Windows 8 sign in error code: 0x80070426. Tried to switch user with other account still same error. How to fix it

I had this same issue and just solved it now. Go to Windows services (Win+R) then type 'services.msc'. Look for 'Microsoft Account sign-in assistant' and check if it is activated or not. If it isn't started, double click it and then set it to start up automatically. Restart the computer and see if it works - did for me. Hope this is useful!