Error Code 0x80070057 – What is it?

If you are receiving Error Code 0x80070057 along with the system message “An internal error has occurred: The parameter is incorrect,” you may have problems with trying to backup files on your PC, save a backup or perform a number of other actions on the Windows operating system. This issue is most often caused by a registry error or an issue within your local language settings.

Common symptoms include:

  • Inability to backup files
  • Inability to recover backed up files
  • Sometimes this error can cause issues and stop Windows updates

The main methods available for resolving 0x8007057 are fairly straightforward, so long as you follow the step by step instructions carefully. The methods available must be completed with caution because more issues can occur if you make a mistake during either of the methods provided below. If you’re uncertain you’ll be able to use the methods without any mistakes, you may prefer to contact a certified Windows technician to help solve the issue for you.


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Error Causes

The two main causes for Error Code 0x8007057 are an issue with the Windows operating system registry or a Windows miscommunication caused by an improper usage of the decimal system, for example, when a language like German uses the ‘,’ symbol for decimals instead of a ‘.’ symbol.

Further Information and Manual Repair

There are two main methods available for resolving 0x8007057 manually. Both of these methods are fairly easy to complete, so long as you follow the step by step instructions provided below carefully.


Read below for step by step methods for resolving Error Code 0x8007057.

Method One: Change the Decimal Setting


If you are using a language setting other than English (UK) or English (US), you could have a decimal setting that needs to be adjusted. Alternatively, in some cases certain programs can change this decimal setting and you’ll need to adjust it manually to resolve the error. Follow the steps provided below to change the decimal setting.

  • Open the Start Menu
  • Search for and open Control Panel
  • Click Clock
  • Click Language
  • Click Region
  • Next, Click Region and Language
  • Click the Formats tab and then click Additional settings
  • There should be an option here for the ‘decimal symbol.’
  • In the available field, type ‘.’ and then click OK to apply the settings
  • Next, restart your PC


Method Two:  Change a Registry Key Value


If Method One did not resolve the 0x8007057 error code for you, you may have better luck with using Method Two. This method requires you to edit registry files, so make sure you follow this method exactly as described below. Mistakes during this step can potentially create more errors on your PC.

  • Open the Start Menu
  • Search for and open Regedit.exe
  • Search for \SOFTWARE
  • Search for \Policies
  • Search for \Microsoft
  • Search for \System
  • Click on System and then mouse over new, and click DWORD Value
  • Type in ‘CopyFileBufferedSynchronousIo‘ and then press Enter.
  • Next, right click the newly created CopyFileBufferedSynchronousIo option and click Modify
  • In the box for ‘Value data,’ type 1 and then click the OK button.
  • Exit the window and restart your PC.


Method Four: Use An Automated Tool


If you’d rather have a tool at your disposal that can resolve error codes such as 0x8007057, you may prefer to download a powerful, automated tool that can do all of the hard work for you.


For further information you may be interested in these similar issues:


How to Fix Windows 10 Error Code 0x800703e3

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How to Fix Windows 10 Error Code 0x8000222

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