How do I switch the Start Up Disk back to Mac OSX hardrive ?

Hi Mac users....
I think I created a huge problem on my computer. I was looking to stop a program from opening up, snapz pro x, every time I restarted my computer. I found out how to delete eventually, but during my search I went to system preferences...than hit startup disk...then clicked on Network startup without switching back to Mac OSX hardrive startup. When I restarted the computer it only flashes a small world button logo and doesn’t reboot. How do I get back onto the computer to change it back to startup with MAC OS X on Mac system. Would I hold the control button down while restarting? I am worried...I hope I didn’t crash my computer? Thanks for help in advance. Please email me if this is quicker to respond.
[email protected]
PowerMac6,3 Mac OS X (10.4.8)

Hi,
Welcome to the Discussions.
Hold down the option key while starting. That will launch Startup manager and you can choose your drive there to start from. Once started go to System Preferences>Startup Disk and select the hard drive again.
John

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