SyncToy 2.0 does not allow left folder and right folder are same one in one folder pair, either one is contained within the other. But if left & right folder are located in different computer, even they have the same file name, but to syncToy, I thought they will show as different ones, such as
\\pc1\program files\filename and
\\pc2\program files\filename, and it will work well. If this is not your case, please let me know.
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