Suddenly I can't copy files over 1GB to my 1TB My Book Live

[Ricky65]

See if this post can help you

Windows 10 Cannot access My Book Live with File Browser

You need to check your file size limitation in the Windows Registry as well… The last time (before everything stopped working completely) Microsoft reduced the allowable file size for SMB transfers and I could no longer save YouTube videos to my drive. I still can’t get SMB working with the changes suggested here or by tech support. I only have access through FTP now Here is how to fix the file size limit… HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\WebClient\Parameters …

New updates to Win10 have introduced new limitations to SMB file exchange.