A number of us have had problems with CS6 Beta insisting on running with administrative priviliges. So far, I don't see a solution listed.
My case seems to be the same as others. We are booting from an SSD on which Windows is loaded. We also have a second drive of the old mechanical sort . All programs are loaded on this drive.
Okay, if that's your situation, read on.... My boot SSD is the C: drive and my hard drive is D:. When I installed CS6 Beta, it refused to run until I set it to run as administrator.
I went into Edit -> Settings -> Performance and on the Scratch disk setting, I checked D: and unchecked C:. Aha! That'll fix it. BUT IT DIDN'T!! CS6 still insisted on Administrative priviliges!!
Tonight I went back into the Performance settings and noticed something. You can change the order of the drives. Since the C: drive was unchecked, I naturally assumed Photoshop would skip over it. THAT ASSUMPTION IS WRONG!!
Just for the heck of it, I changed the order of the drives by highlighting the C: drive then going to the right and clicking the down arrow. I then OK'ed that setting, went out of Photoshop and brought up Explorer where I unchecked "Run as Administrator" for Photoshop.exe. Then I rebooted. When I brought up CS6, IT WORKED!! It no longer needed to run as Admin!
Fix it, Adobe!
PC - Windows 7 Professional 64 bit
8 Gig RAM
Asus GeForce GTX550
OCZ Technology 60 Gig SLD3 SSD
WD 750 Gig SATA III HD