Operating system
Windows 7
When we trying to backup files using the windows inbuilt backup utility called Windows Backup, the backup process fails and showing the below error
An internal error has occurred: The parameter is incorrect: (0x80070057).
Method 1:
Microsoft released the Fixit Microsoft Fix it 50719 for the above issue. The same will be available from the below link
Method 2:
Change the decimal symbol setting
This problem can occur if the decimal symbol is not set to '.' (dot). This is common in languages and locales other than English (United States), such as German (Germany).
To change the decimal symbol setting, follow these steps:
  1. Open Control Panel, click Clock, Language, and Region, and then click Region and Language.
  2. Click the Formats tab, and then click Additional settings.
  3. In the Decimal symbol field, type . (dot), and then click OK two times.
  4. Restart the computer.
Method 3:
Open the registry editor by typing the regedit.exe command and locate the below path.
Create a DWORD value CopyFileBufferedSynchronousIo and modify the value to 1.Close the registry editor and reboot the computer.