I made some screenshots, to make things more clear.
First look at all the images below.
image 1

shows USB tray working correctly in "safe mode", under administrator (on the same computer)
image 2

shows all the services that are running in "safe mode", under administrator (on the same computer)
image 3

shows all the processes that are running in "safe mode", under administrator (on the same computer)
then:
image 4

shows all the services that are running in "normal mode", under administrator (on the same computer)
image 5

shows all the processes that are running in "normal mode", under administrator (on the same computer)
The problem:
Normal mode:
The removable usb tray icon does not work in
normal mode!
i cannot click on it! nothing happens!
- true printers and devices, nothing shows!
Save mode
in save mode, under printers and devices, things show up! like the should!
how can i fix my problem!?!
- got no recovery points!
- not going to put back a backup yet!
- got windows 7 professional ( MSDN version )