We spent about 10 hours setting up our new windows 10 server this weekend. Copying data to/from external SSDs took longer than expected. We replaced our Win7 server with a Win10 server and here's what we learned. Stop the ATX server services on the old computer before copying data. Copy EVERYTHING in both: C:\ProgramData\CCH Small Firm Services C:\ProgramData\Wolters Kluwer Copy the data to the new computer BEFORE you install ATX. ATX will find the data and your set