It's really handy to do things regularly with Windows scheduled tasks, but you'll always need to set a password when you create a task, or you'll report a 80070005 system error when you perform a task that will prevent the task from executing.
Sometimes Windows does not have a password or when the account changes the password you have to modify the task properties, which are cumbersome, but we can also use the "NT Authority\System" account to perform tasks without requiring a password.
The SYSTEM user and the user using a normal administrator have the same privileges for the file. But they have different functions. The system account can be used by services and operating systems that are running under Windows. There are many services and Windows processes that need to be able to log on internally (for example, during Windows Setup) and the system account is designed for that purpose; it is an internal account that is not displayed in User Manager, cannot be added to any group, and cannot be assigned user rights. By default, the System account grants full control over all files on NTFS volumes. This system account has the same functional permissions as the Administrator account.
The normal administrator account is not able to log on inside the system. For the file system, the Administrator account and the Sysem account have the same permissions. However, for some services and processes, we need to use a system account instead of an administrator account, because these services and processes need to be internally logged in to interact with the system.
Windows scheduled task settings that do not require a password