Gui Layout Toolbox installing

I'm trying to install a GUI Layout Toolbox, but nothing happen when i click accept the terms. How can i check if a toolbox has been installed or not? thank you

[Muzaib Anjum]

how are you installing it kndly tell me the procedure!

Answer 1

[Andreas Bernatzky]

Just type following into command window. "ver" shows you all installed toolboxes

ver

[Anh Tong]

Thank you!