You have given me several minidump reports. It is important to realize that most times the reports dont agree, but merely give small clues about the true cause.
Your reports are as follows
1A, 50, A, 8E, 4E,
1A Usual causes:
, memory, kernel
50 Usual causes:
Defective hardware (particularly memory - but not just RAM), Faulty system service, Antivirus, Device driver, NTFS corruption, BIOS
A Usual causes:
Kernel mode driver, System Service, BIOS, Windows, Virus scanner, Backup tool, compatibility
8E Usual causes:
Insufficient disk space, Device driver, Video card, BIOS, Breakpoint in startup without having a debugger attached, Hardware incompatibility, Faulty system service, 3rd party remote control, Memory
4E Usual causes:
Device driver, ?memory
Several of these reports point toward memory. I think that is a good place to start.
Take a memtest86. Run 8 passes, and then test each slot with a known good stick for 8 passes. Guide to using Memtest86+ - Geeks to Go Forums
Advice that is given to all members with BSOD problems is to
Make an SFC scan System Files - SFC Command
Download and run a full anti virus scan
Download and run a full scan with malwarebytes.