1C SQL Password reset

First Step:

USE [your_database]
GO
EXEC sp_rename 'v8users', 'v8users_tmp'
GO
UPDATE [Params]
SET [FileName] = 'users.usr_tmp'
WHERE [FileName] = 'users.usr'
GO

Run 1C:Enterprise - Database configuration

Second step:

USE [your_database]
GO
DROP TABLE [v8users]
GO
EXEC sp_rename 'v8users_tmp', 'v8users'
GO
UPDATE [Params]
SET FileName = 'users.usr'
WHERE FileName = 'users.usr_tmp'
GO

And Reset users password