Random BSOD 0x124 occurs Frequently

I have a HP Probook 4310 S, 4Gb RAM, Windows Ultimate 32 bit.
Am experiencing BSOD 0x124 very frequently and randomly for the past 2 months.
Also experiencing several other BSOD codes as well.
I did a Hard Disk test from HP Diagnostics Tool.
And it mentioned failed.
Memory Test was successfull.

After boot, BSOD 0x124 occurs at any time 5 mins, 1 hour ,2 hrs.
But BSOD never occured while in safe mode. able to use safe mode for several hours.
Am worried if it is only the hard disk that has failed or the processor or the motherboard.

Also warranty expired last month and it is quite expensive to extend it.

I have reinstalled Windows 7 2 times in the past week.

I have attached recent minidumps. Please let me know.
Thanks a lot in advance.

 

My first thought with random error codes was memory but then you mentioned

So I think we can rule out memory and the hard drive.
I'd now lean towards a bad driver.

It might be hard to remember back 2 months but try and figure out if you updated a driver then. That might be what is causing your current headache.

 

Hi Thanks for your reply.
I have reinstalled Windows 7 also. So, wont all the previously installed drivers be removed?
Also, if its not the memory or the hard disk that is causing problems, is it the processor? what else could be the problem?