qwazwaz :
Your computer crashed. A driver may have caused it, or it overheated, or your processor just shat out. If it doesn't happen too often, and if a crash/data loss won't devastate you (like it would a financial business), then... ignore it. Just save your work every now and then.
That is not good advice, BSODs don't just happen for the sake of it.
You shouldn't ignore it as it happens for a reason, that reason is severe enough to bring instability so the system must stop.
Now, we do need the dump files to help.
Due to the fact that there are no files in C:\Windows\minidump isn't helpful, there might be a Kernel memory dump.
Go the Start
Right click My Computer
Select Properties
Click Advanced system settings
Click on the Advanced tab
Select Settings under Startup and Recovery
Then under Write debugging information select Kernel memory dump.
Once a dump is created go to:
Copy the file to the desktop, zip it up and upload it to a file sharing site like Onedrive. After the upload is done post the download link in your next reply.