If you receive below error messages during copying the file. This is the video for you.

“An unexpected error is keeping you from copying the file. If you continue to receive the error, you can use error code to search for help with this problem.

Error 0x800700DF: The file size exceeds the limit allowed and cannot be saved.”

You can follow the below instruction to resolve this issue.

  1. Click the Start button, click Run, and type REGEDIT. Click OK
  2. Go to the below registry locaion HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\WebClient\Parameters
  3. Right click on the FileSizeLimitInBytes and click Modify
  4. Click on Decimal
  5. In the Value data box, type 4294967295, and then click OK.

Note: This sets the maximum you can download from the Webdav to 4 GB maximum in one time.

I hope your problem has been resolved now and no error 0x800700DF during file transfer.

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