0: in Windows go to Control Panel>Add/Remove programm > Add Windows component
install IIS and Message Quering
install MS Office (Excel ...)
install all update for Windows

1. Mount PCS_7_V90_DVD1.ISO to virtual drive (UltraISO)
2. Run Setup.exe
3. Select components
4. See progress and click to buttons...
5. Restart Windows by request
6. after request mount PCS_7_V90_DVD2.ISO to virtual drive (UltraISO) and continue
7. install keys
8. To install Key correctly see this video:
https://www.youtube.com/watch?v=SpR165EPMBY

if you use notgood Windows - possible problems after installation of MS update KB***.
goto Control Panel>Add/Remove programm > Add Windows component and remove installed KB***