If you are getting numerous overwrite prompts and want to avoid receiving them in the future, configure a default rule for the overwrite configuration panel.
To add a rule
On the main menu, click Tools > Global Options (or press ALT+F7).
Expand the Transfer node, then click Smart Overwrite. The Smart Overwrite options appear.
In the For matching files list, click Use Rules.
Select the Ignore zero byte files check box.
In the For matching folders list, click Use Rules.
Click Configure Rules. The Overwrite Rules dialog box appears.
In the If the destination file date is list, click older.
In the and size is list, click smaller.
In the during list, click any transfer.
In the then list, click overwrite.
Click Add. The new rule appears in the list. Add more rules as needed. Below are some recommendations:
If destination file date is the same and size is the same during any transfer then skip.
If destination file date is older and size is different during any transfer then overwrite.
If destination file date is no matter and size is smaller during any transfer then resume.
If destination file date is newer and size is larger during any transfer then skip.
Click OK to save the rule and close t he Overwrite Rules dialog box.
In the Prompt timeout action list, click Skip.
Select the Timeout in check box, and leave the time at 30 seconds.
Select the Resend LIST command as necessary check box.
Select the Use SIZE and MDTM commands to gather precise details check box.
Click OK.