Find out how to fix the 0x80070057 error code in Windows Server 2003 with these detailed step-by-step solutions.

Here are multiple approaches to fix the 0x80070057 error code in Windows Server 2003:

1. Use the System File Checker (SFC) tool: Open Command Prompt with admin privileges, type 'sfc /scannow' and hit Enter. This scans and fixes any corrupted system files.
2. Check the disk for issues: Open Command Prompt with admin privileges, type 'chkdsk /f /r' and hit Enter. This scans and repairs any disk errors.
3. Temporarily disable third-party antivirus or firewall software and retry the task.
4. Inspect the Windows Registry for errors: Open Registry Editor, navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System. Ensure a value named 'EnableLUA' is set to 1.
5. Perform a clean boot: Open System Configuration, select 'Selective startup,' and disable all startup items and services except Microsoft services. Restart the computer and retry the task.
6. If none of the above methods work, attempt to restore the system to a previous restore point where the error was not present.