A debugger for Microsoft Windows. WinDbg can be used to locate and resolve errors caused in a system
Use WinDBG and obtain mini-dumps to find out what’s wrong with the system that’s causing BSoDs
You can find the mini-dumps at C:\WINDOWS\Minidump (Run WinDBG as admin or configure the minidumps to be saved elsewhere outside of the WINDOWS folder)
Open the minidump and run the analyze command on it. An example of a possible error that can be analysed using WinDBG is the nvlddmkm.sys problem