This HP laptop with Windows 7 which I purchased new in 2014 has been running 24/7 ever since. Today I performed my monthly backup to a Seagate 1TB external hard drive, and saw Windows Easy Transfer in the lower left corner. I have used Windows Easy Transfer before to transfer files from my old, still functional laptop with Windows 7 to this one. I seem to recall that Easy Transfer only works if both units share the same OS, i.e. Windows 7.
Here is my question: Assuming my hard drive fails in the near future and all I have is the backup in the Seagate external, am I going to have a problem if this laptop crashes and I have to buy a laptop with Windows 10, due to the fact that the files were from a Windows 7 laptop?
Also, will the files backed up in the external hard drive using Windows Backup be sufficient to install my iTunes library into a new laptop or should I run a separate iTunes backup to the external?