Today I ran into a small issue where I couldn’t use ctrl+shift+v to move emails. Instead of giving me the move dialog, I was getting a new email with pasted text in it.
It turns out, this was because I recently installed, Clipdiary, a clipboard history utility for Windows.
To fix this, go to File – Options – Hot Keys. Put a check next to ‘Win’ on ‘Paste current clipboard contents as plain text’. As you can see, what you are doing is telling Clipdiary to not use Ctrl+Shift+V for pasting the clipboard contents as plain text (stealing the hotkey from Outlook), instead use Win+Ctrl+Shift+V.