BSOD occuring daily at random times

Is Windows 7 . . .
- x86 (32-bit) or x64 ? x64
- the original installed OS on the system? no
- an OEM or full retail version? full retail

- What is the age of system (hardware)? 4 years
- What is the age of OS installation (have you re-installed the OS?) 3 months

HP printer drivers/software looks to be causing some trouble. That or your super outdated Nvidia chipset drivers (2009). Please go to the Compaq website and see if you can't find any updates for your motherboard/chipset drivers as well as BIOS. In addition, you'll want to update your HP drivers and software as well.

I noticed this is causing commotion because you're using a parallel port to hook up to your printer instead of a USB. Are you not able to hook up via USB? There's nothing entirely wrong with parallel, but it's quickly being phased out of consumer market and there's more and more support for the USB side. If you can switch to USB connection that might be preferable.

Just so you know, this diagnosis is only partial. I cannot ascertain exact cause unless you turn on Driver Verifier, or provide a kernel dump (MEMORY.DMP in Windows directory). If you choose to turn on DV, do not select the following checks: Force Pending I/O Requests, IRP Logging, and Low Resource Sim. Select all other checks. Make sure to restart system after you finish setup. If you experience a boot loop afterwards, go into Safe Mode by pressing F8 prior to Windows logo and disable DV there. Provide us any new crashdumps.