Can't c Remote button on iTunes to use iTunes Remote on iPhone.

orgnr wrote:

This is not my current P.C., that was the only choice Apple let me put/select as my computer. I think it was my old 1. My new P.C. is a Dell Inspiron 24-5459, & uses Windows 10 Home.

OK, got it.

See this Apple article: Check your Apple ID device list to see where you're signed in

https://support.apple.com/en-us/HT205064

Remove the old pc from your account and add your current pc to your account.

About the remote button see this Apple article => Set up the iTunes Remote app for iTunes on PC

https://support.apple.com/lv-lv/guide/itunes/itnsa1c27e74/windows

Windows 6 is Windows OS Vista (Januari 2007) is an outdated OS, is an unsupported version of Windows

Microsoft say goodbye to Vista in 2017.

Do you realize that you are using a computer with an outdated operating system?

Not sure if that's the reason.

Read the article at the top left of this thread and click -> Contact Apple for support and service.