I am using Windows 7 and every time it boots and application pops up with just a small dialog titled 'Windows InStaller" and hangs for forever and if i cancel it that hangs also.
How can I see what is causing this action and kill it?
If your computer hangs at startup, there is no means of seeing what processes are running other than checking log files. You should boot in safe mode and run an antivirus program.
You can do: if you cant do it in normal startup then do it in safe mode, for safe mode press rapidly F8 (in most cases) during boot time, to see list, and select Safe mode
1st step : Check whats there on startup,..
2nd step : Registry Tweaking (be careful)...
Use any good system maintenance tools like
if you still cant solve it then , comment...