2 days ago i upgraded (reinstalled) Win7 and Photoshop cs4 could not be started anymore.
i reinstalled Ps. with the same result again.

Yesterday, i reinstalled Win7 again and then Ps. again.
same result.

every time i try to start Ps. a notice says: Photoshop was unable to start correctly (0xc000007b).

i looked that kind of error on the Internet and there are many answers, both complicated and simple ones.
One of them said that most probably the reason was in component services/services (local) there was a badly configured service.
I reviewed all the services and think they're ok.
then i uninstalled Ps. and cleaned up everything in the registry that pertained to Ps, as also on C drive.

then i reinstalled Ps, but i still can't use it.

the only thing left for me to do is to wipe C drive and reinstall W7 and all my programs; something i don't like to do;

does anyone have a solution to make that Ps. work?