Go to C:\Windows\Minidump folder under that folder you could find some files with "DMP" extension. Create a Temporary folder on your Desktop and Copy those files over to that folder and Zip it.

If the File siz is big the upload it to Windows Sky Drive. or Upload it to the thread. Start your Own Thread post the Download Link to the Dump file someone should attend you shortly.

In case you find any problems with permissions especially on Windows Vista / 7 the you might need to Take Ownership of the whole folder and the files inside it. Follow this document if your not sure how to do that. Take Ownership

Once you post the file just describe briefly about you problem or what exactly happen do you think it caused.

If you don't find any .dmp files follow the below steps.

Go to Start and type in sysdm.cpl and press Enter
Click on the Advanced tab
Click on the Startup and Recovery Settings button
Ensure that Automatically restart is unchecked
Under the Write Debugging Information header select Small memory dump (256 kB) in the dropdown box
Ensure that the Small Dump Directory is listed as %systemroot%\Minidump << where your .dmp files can be found later
Click OK twice to exit the dialogs, then reboot for the changes to take effect.

For Window 7 Computer follow this link and Download the software and follow the instructions SF Diagnostic Tool