ubuysa
The BSOD Doctor
I don't think we've checked your RAM yet have we? 0xC0000005 can be caused by bad RAM - though it can have several other causes - and I think it would be wise to eliminate RAM soon, especially since you seem to be having apparently unrelated problems.
Download Memtest (free) and use the extracted tool to make a bottable USB containing the Memtest software. Boot that USB stick and Memtest will start running (as long as you don't move the mouse or press and keys). It will take several hours to run so let it run overnight, this free version only does 4 iterations of the various tests but that's good enough to find 98% of RAM issues.
Let us know what Memtest finds - even one error is a failure.
Download Memtest (free) and use the extracted tool to make a bottable USB containing the Memtest software. Boot that USB stick and Memtest will start running (as long as you don't move the mouse or press and keys). It will take several hours to run so let it run overnight, this free version only does 4 iterations of the various tests but that's good enough to find 98% of RAM issues.
Let us know what Memtest finds - even one error is a failure.