BSoD at start-up

[NightBlaze]

My friends' desktop computer has been getting some random blue screens of death from time to time. All of the errors occurred when starting up the computer — none during actual usage. The last couple of them put the Windows in recovery mode before booting properly, and one of them went as far as putting it in a reboot loop for quite sometime.
 

Here are the dump files, as requested by the posting instructions: 

• https://drive.google.com/file/d/1DJ1CtocE5bXsmYd81oSou_6B6AmV9jeW/view

About the Kernel-Power specifically: due to previous problems, both temperatures and power supply have been checked. The power supply was recently changed to a Corsair VS450, which should be delievering more than enough power, and temperature at idle stays at a comfortable 40°, and goes to upwards of 60° at load.

It's also worth noting that, despite reporting driver problems at the PS/2 connector, none of the devices connected to the computer are actually PS/2 — both mouse and keyboard are USB, and we've tried to reinstall the drivers for both, to no avail. There was also an attempt to install the missing Bus Driver from Intel, but Intel's installation tool refuses to work even after continuous hours.
 

The machine in question runs a 64-bit version of Windows 7 on an Intel Core i5-2500K, with 2x4GB DDR3 memory and without any dedicated graphics, but we can't determine the motherboard. With exception of the power supply (which is less than a couple of months old) and the RAM memory (which was bought just a couple weeks ago), all of the parts are second-hand and of unknown age. For as long as it is with my friend, this particular build of the system has ran Windows 7, which was installed by a computer technician, also a couple of months ago.

Since Google and my superficial knowledge on tech are proving to be insufficient to solve this round of problems, I would be quite glad if any of you could help.

[kelvinhall05]

Reinstall Windows and also seriously consider upgrading to 10.

[Radium_Angel]

Give me a minute to deconstruct the crash dumps, I'll have you some answers

[Radium_Angel]

Actually, I can't...no Win7 VM to work under, give me some time to create one.