Sounds like you may not have installed SU correctly.
Close SU and layout.
Find the .exe installer, probably in your downloads folder, or download a new one.
Right click on it and choose Run as Administrator, then when prompted select repair.
This should fix permissions issues that could be causing the problems you describe.
Box,
Regarding to permission issues, it may take few hours for sending back to IT to reset my system and
take back.
Thanks for your reply, I’ll let our company’s IT knows it.