At Nt Log In: The Sinister Plot That's Targeting Millions Of Users. - Ripple Post
Login failed for user 'NT AUTHORITY\SYSTEM' I tried to add NT AUTHORITY/SYSTEM to SSMS (SQL Server Management Studio) logins, but it was already a principal, showing the following error: Apr 27, 2015ย ยท For some specific purpose , I need to add NT SERVICE\MSSQLSERVER account to Administrator Group . It can be done through Computer Management->Local Users and Groups.