New iTunes + New Computer = No Playlist

Recheck the procedure you followed. Assuming that these are the directionsyou followed, the key steps are:

• On the old machine, consolidate your library if necessary to ensure that all media files are contained within the iTunes Media folder
• Copy the complete iTunes folder (not just the media folders) to an external drive. The structure of what you need to copy should look like this:
  
  The symptoms you describe suggest that you may not have copied the iTunes database (the iTunes Library.itl file) which is where all the info about playlists, etc.
• Copy the same iTunes folder structure from the external drive to your new computer. If you're using the default location this should end up as C:\Users\username\Music\iTunes (same place in Windows 10 as in 7/8/8.1). See notes in the Apple document referenced above about moving any new media you've added to iTunes before migrating your library from the old PC.
• To make sure you're picking up the correct library database, hold down SHIFT while you start iTunes. When you see this prompt:
  
  click on Choose Library... then navigate to and select the iTunes Library.itl you copied from the old PC.

Following this procedure should ensure that everything in your library is correctly replicated. Assuming so:

• If you're no longer using the old PC for iTunes, de-authorize your Apple ID on it
• Use the external hard drive to create and maintain a backup of your library - see turingtest2's tutorial on Backup your iTunes for Windows library with SyncToy for a suitable/recommended method.

The presence of the Not Added folder suggest that you're trying to add to old library folders to your new library. You don't need to do that - as described above you need to replicate the complete iTunes library structure from the old computer to the new one, then select the copied iTunes database when you start iTunes. I would double check the directions you're following - there is some poorly thought out guidance around based on adding the media from an old library to a new one - which is all this will do. To retain playlists, etc. you must migrate the library database as well as media folders and files.

The current (12.2.2) version is compatible with Windows 10 - at least to the same extent as it is with previous Windows editions. Problems with library migration are rarely, if ever, related to software issues.

Will the device perform a successful backup to iCloud?

tt2