Photoshop CS4 installation stops at “preparation”

[Pink grapefruit]

Hi to all,

yesterday, my PS started to crash everytime, shortly after the start. So I was thinking to install it over again. But the installation wouldn't go any further than "Preparing installation". After an hour of waiting, I stopped the installation progress and deinstalled PS from my PC (Windows 10/64Bit). But it keeps supporting at the preparation screen. 

Any suggestions?