Explorer Right click disabled

[CallousDisregard]

Hi
My right click doesn't work online.
I looked it up and you can enable/disable it in regedit but my problem is that it resets after the PC is turned off.
This problem started after a virus infection and a complete reboot from backup.
I have no other problems with the system except the missing right click.
Has anyone had this happen ?

[strima]

Do you have yahoo tool bar installed on your browser?

[CallousDisregard]

I have FireFox, but I had it before the crash w/ no problem.
But I will go looking in the firefox options to see if I clicked something by mistake.
ty

[CallousDisregard]

I found some feature called" honorautorun" and I changed the value in that and the problem seems to have stopped.
I am really curious about how it started though.