No panic. It's all saved.
By default, when the system crashes Windows saves a dump file (extension DMP) in the following folder : C:\Windows\Minidump. These files are called "mini dumps" (few 100 KB) and there is a file for each crash.
Otherwise (if the default settings were changed) a kernel or full memory dump (100s of MB) may be created. In this case the file is called : C:\Windows\Memory.dmp. There is only one file because each new crash replaces the previous dump.
To see the information in this file you need to use a debugger.
Download and install the Windows Debugger (WinDBG) from Microsoft. It's a free and small download.
In the file menu, select Open Crash dump and type the following command in the bottom of the main window (don't miss the exclamation point at the front):
!analyze -v
This command will display all the information about the problem : faulty driver, error code, address etc...
If you need help, e-mail me the DMP file from your system. I'll look up the problem for you. I am a device driver programmer, it will only take me a couple of minutes.