I have an hp 2320dx laptop with windows 8.1 installed. Since the laptop has been purchased it has had issues starting up. It will boot to the logo screen and shortly after the pinwheel starts it just hangs there. It does it off and on but has been consistent through new memory and a new hard drive as well as clean installs and the latest driver and bios updates. It will consistently boot about 20 times and then it will hang until you have to hard shut it down and then it starts the hang cycle. Not sure what else is possible to try. I have looked on a lot of hp's forums for this laptop and all of them have had the issue since purchase. Manufacturing defect? Any help would be appreciated.
For the hard drive, I usually use the hard drive manufacturer's test program, though chkdsk can be used.
Make sure everything is backed up!