New Tutorial - WinRE based boot disk

[TeraByte Support(PP)]

That error won't affect the disc (it will still be valid).

Did you have Explorer open in the mount folder (you said it was empty at the time)? That can cause the error.

To avoid a possible mounting error when the script is run again, delete the mount folder (located at G:\TBWinRE\mount, in your case), and then open an Administrator Command Prompt and run the following command: dism /cleanup-wim