What is stored in the clipboard depends essentially from the source it is copied from, and what is pasted to another program depends on what the target program

What is stored in the clipboard depends essentially from the source it is copied from, and what is pasted to another program depends on what the target program is prepared to receive. In the case of text, very often what is copied is plain text + formatted text like HTML or RTF (i.e. there are two - or more - "items" loaded to the clipboard) and when you paste, what is pasted is the default (or the only) kind of text that the program accepts (notepad accepts only plain text, other programs might allow you to choose between paste or paste text only). Check: https://freeclipboardviewer.com/windowsclipboard/ https://freeclipboardviewer.com/windowsclipboard/ Try: https://www.nirsoft.net/utils/inside_clipboard.html https://www.nirsoft.net/utils/inside_clipboard.html