I'm trying to update to Mavericks, but the App Store isn't signing me in.

Question

So I decided that I want to update to Mavericks, and they take me to the App Store on the Macbook Pro. When I put all my info in and clicked the sign in button, it doesn't sign me in. Rather, it's still loading. It has been around 30 minutes already and I'm still waiting to get signed into the App Store. Does anyone know how to fix this or know what may be happening?
Thanks!

Answer 1

Bummer!  You should have uninstalled on the day before the end of the trial.    The Uninstaller is also subject to the trial period limitations.
If you plan to buy a full license, you don't have to uninstall the trial version at all.
It's exactly the same binary you'd be getting anyway, and it's the same binary for the Extended and Standard version of Photoshop.  It's your serial number ("key") that turns it into either Standard or Extended.
I'll bet that if you attempt to launch your expired trial version, it will prompt you for a valid license number or to buy the license.  So when you have bought the license, just input the serial number there and you're good to go.
If you're absolutely itching to delete the trial version, and provided you have no other CS applications (any version or flavor or CS), then just drag the Photoshop folder to the trash, empty the trash can, and then run the Adobe CS Cleaner Tool, which you must locate on the Adobe site and download.  The Cleaner Tool will (should) get rid of all the other components scattered by the CS6 installer all over your HD.
Hope that helps—at least to put you at ease. 
Enjoy your Mac.  Typing "MAC" reveals you are relatively new to the Mac, congratulations!. It's Mac for Macintosh.