Unable to install Qt Designer on Windows 7

time

I had installed Qt Designer on my laptop on disk D: it works fine. But yesterday I lost that disk, so now I have only disk C: with Windows. All data from D: are gone. Also Qt Designer program.
So I uninstalled the trashes stayed from Qt, restart the computer, run CCleaner and downloaded new Qt Designer (Open Source) file. But when I am on the and of instalating process and hit Install, the error appears

"qt-unified-windows-x86-2.0.3.1-online.exe stop working" !
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and program is stop. I tried different versions of install package, but nothing works. I think this is problem with my computer, maybe drivers or something like that.
Somebody have had the same problem?

hskoglund

Hi when it's crashed this way, you can try creating a new User in Control Panel, switch to that user and then try downloading/installing Qt.