Windows Explorer

When you right clicked on win.lnk the target says

C:\Users\Mike\AppData\Roaming\Microsoft\Windows\Libraries\Music.library-ms

Can you delete the win.lnk folder .

Restart delete the C:\FRST folder and delete the old FRST64 files . And download a new copy of FRST

FARBAR RECOVERY SCAN TOOL x64
Drag the newly downloaded FRST64 from the Downloads folder to your Desktop
Right click on FRST64.exe and choose
When the tool opens click Yes to disclaimer.
Press Scan button.
FRST will let you know when the scan is complete and has written the FRST.txt to file

The log isn't showing me anything . Are you still having the pop up after you deleted the FRST folder from the C drive ?

Ok . Open up SystemLook
type in

:regfind
My Music



:regfind
win.lnk


Its a lower case L

Click on Look . upload the SystemLook.txt file

Can you try

:Filefind
win.lnk

Inside SystemLook and click on the Look button .