My Lenovo G505 laptop has crashed quiet a few times, but i did not see the error message, i have the minidump.

Can i know how and where to upload the minidump?

Thanks

Nitin

Here is the guide for that.

http://bsodtutorials.blogspot.fi/2013/11/how-to-upload-kernel-memory-dumps-to.html

When you have uploaded the file(s), we can analyze it.