You can easily do it from a cmd prompt:
Click Start; then type cmd and press Shift+Ctl+Enter to start a command prompt with elevated privileges. Answer any UAC prompt.
At the command line, type these commands, one line at a time, pressing Enter at the end of each:
The first line puts you in the root of the partition.
The second line asks for a directory (listing), from all subfolders, of files with the attribute L, which I presume stands for link, and to put that output into a file named JunctionPoints.txt. (If you already have a file by that name in that place, it will be overwritten.)
The third line starts the file in your default text editor, which is usually Notepad.
The fourth line exits the cmd prompt.
Note that you'll have to answer a UAC prompt when you delete C:\JunctionPoints.txt.
If you want to run the command on another drive, at the CMD prompt, type the drive letter followed by a colon and press Enter; then resume with the CD \ command and continue.