Note 2: the number of OEM driver updates indicates that most likely the problem is not in windows code but in the OEM drivers supplied by HP and its OEMs.
Note: look here for updates but make sure it this the correct model, there are various versions of the same model.
All of the sound drivers have been updated for windows 10 for this device, same with the CPU chipset drivers, gpu drivers, Bluetooth drivers, wireless drivers, realtek usb card reader drivers.
http://support.hp.com/us-en/drivers/selfservice/HP-Pavilion-500-300-Desktop-PC-series/6879020/model/6888185#Z7_3054ICK0KGTE30AQO5O3KA30R1
first bugcheck was caused because some device driver overwrote data in memory owned by the kernel. This caused the kernel to use a bad memory address, and it caught it and called a bugcheck.
suspect drivers:
overclocking driver (remove, at least until you resolve this bugcheck))
C:\Program Files\ATI Technologies\ATI.ACE\Fuel\amd64\AODDriver2.sys Tue Feb03:06:52 2014
CyberLink Virtual Device Driver
\SystemRoot\system32\DRIVERS\CLVirtualDrive.sys Mon Nov 11 19:31:36 2013
update:
http://www.cyberlink.com/support/product-update.do?t=update&locale=en_US&lang=en_US
update:check HP for update for your motherboard (most likely this driver is not the problem)
Realtek PCI/PCIe Adapters
\SystemRoot\System32\drivers\Rt630x64.sys Tue Apr 22 19:11:55 2014
(I think your problem will be with this driver)
SigmaTel High Definition Audio Codec
\SystemRoot\system32\DRIVERS\stwrt64.sys Wed Nov 06 22:12:44 2013
It is a OEM driver and you will have to get the update from the OEM, HP in this case.
machine info:
BIOS Version 80.07
BIOS Starting Address Segment f000
BIOS Release Date 06/11/2014
Manufacturer Hewlett-Packard
Product Name 500-314
Product 2B17
Version 1.0
Chassis Type Desktop
Processor Version AMD A8-7600 Radeon R7, 10 Compute Cores 4C+6G
Processor Voltage 8ch - 1.2V
External Clock 100MHz
Max Speed 3100MHz
Current Speed 3100MHz