Copying USB drive

[web]

Hi all I have a lot of files 321GB I save on different external drives all USB3 the type that doesn't need external power IE powered by USB ........ my problem is that when I update one copy say with new files, when I try copy paste updated copy to any other saved copy it wants to rewrite all files not just the updated ones what am I doing wrong ? any help advice welcome

 

[RolandJS]

Are you using Windows' explorer.exe? Unless something has happened, the first "fork in the road" -- the first file that encounters a similar name but with different size and/or different date -- should generate a popup that gives you the option to update all with similar size/date mismatch and not copy the files that have the exact same size/date files. I hope somebody can explain it better than I just did - I'm in a classroom with a March of the Penquins movie speaking all over the place.

 

[web]

Are you using Windows' explorer.exe? Unless something has happened, the first "fork in the road" -- the first file that encounters a similar name but with different size and/or different date -- should generate a popup that gives you the option to update all with similar size/date mismatch and not copy the files that have the exact same size/date files. I hope somebody can explain it better than I just did - I'm in a classroom with a March of the Penquins movie speaking all over the place.

something similar to what I think u said use to happen explorer would ask me if I wanted to copy replace same files to which id say no and just new files where copied ???? taking no time at all now want's to copy for hours ??

 

[RolandJS]

Well, if there are lots of changed files, that could take some time; especially when piping through the usb port, 3,2, or otherwise.

 

[web]

Well, if there are lots of changed files, that could take some time; especially when piping through the usb port, 3,2, or otherwise.

this is something new happening it didn't use to be this way explorer doesn't ask me for instance do I want to copy same file or replace it anymore ?