Startup problems

I dont know if this is a fault with CCleaner or maybe Windows 7, but i cannot disable Windows Sidebar in Startup.

When I try a message appears saying:

"Failed to enable/disable startup program:

Access is denied."

Also, when i try and delete the entry, nothing appears to happen. Ccleaner just says do you want to delete the entry, yes...and then nothing.

Have you tried this

http://www.howtogeek.com/howto/3255/disabl...s-on-windows-7/

Thanks for that, ive only done the right click on the desktop, thanks for the link

Have you followed the link instruction pictures on how to disable it?