Photoshop/Illustrator don't start - no crash, no loading screen

Hey,

I downloaded the trial versions of Photoshop and Illustrator yesterday and installed them.

When I execute the executable file (Photoshop.exe/Illustrator.exe / 64 Bit and 32 Bit) neither a loading screen/splashscreen pops up nor I get a crash message.

I deactivated my antivirus, my firewall and logged out several times (Creative Cloud).

I also reinstalled both applications (uninstalled, downloaded it completely, installed again)

It still doesn't work.

Can anyone please help me?

Thanks,

xthepr0mise