Problem with DG43NB stopped working and just rebuts after starting the post, safe mode dose not work. I unplugged the cd reader, tried another hdd, and tried pcie vidio card and running with just one memory dim.The machine stops on SPDT.sys when loading in safe mode. Prior to this the system worked fine for 9 months.
Did you have Daemon tool or Alcohol 120% installed on your system previously?
If yes, try this:
If your system has some problems with SPTD installation you can do as follows:
1. Boot in safe mode and press ESC key when you see on bottom line of display: "Press ESC to cancel loading SPTD.sys". This will abort loading of SPTD layer.
2. Find "HKEY_LOCAL_MACHINE\System\CurrentControlSet\ Services\sptd" registry key in REGEDIT and set DWORD Start value to 4 (i.e. disabled).
3. Reboot again in normal mode and check if your issue is solved
All the best,