you had 8 bugchecks, 7 of them were in the video subsystem. the last one was in the antivirus scanner.
I would just update the drivers and see if the problem goes away. also,
I would run cmd.exe as an admin, (windows key+x, then type A)
then run
sfc.exe /scannow
dism.exe /online /cleanup-image /restorehealth
both of these will check for file corruption and attempt to fix them. (i don't think it will be the cause of this bugcheck but it can not hurt)
--------
second bugcheck was in your antivirus scanner, (Microsoft security essentials)
it used a invalid memory address.
-------------
basically directx (video subsystem) had a problem and bugchecked the system.
you will want to install a updated intel video driver from your motherboard website.
http://h20564.www2.hp.com/hpsc/swd/public/readIndex?sp4ts.oid=5359406&swLangOid=8&swEnvOid=4132
all of your motherboard drivers were out of date, so you should run the updates for your machine.
(there could be other causes for this error, IE overheating, blocked or stopped fans,... but start with the driver updates)
--------------
first bugcheck was a bad memory address passed to directx
(the directx heap was corrupted)
System Uptime: 0 days 22:46:29.427
note: \C:\Windows\KMS\WinDivert.sys Mon Dec 02 19:46:09 2013
is running
all of your motherboard drivers are old.
BIOS Version 68IRF Ver. F.04
BIOS Starting Address Segment f000
BIOS Release Date 06/24/2013
Product Name HP ProBook 450 G0
Version A2018CD200
Manufacturer Hewlett-Packard
Product 1949
Version KBC Version 90.0C
Chassis Type Notebook
Processor Version Intel(R) Core(TM) i5-3230M CPU @ 2.60GHz
Processor Voltage 8ch - 1.2V
External Clock 100MHz
Max Speed 4000MHz
Current Speed 2600MHz