I've had my pagefile disabled for YEARS with no issues whatsoever, and I've been playing the Witcher 3 at 1440p
that's part of the problem. lower resolution = less ram.
60 FPS maxed settings on my twin 980 FTWs
this wouldn't affect your ram usage...
since release with no serious issues besides the driver crashing about three or four times, which seems to be affecting a lot of people regardless of whether their pagefile is disabled or enabled.
that's correct. but you weren't paying attention. the error in question was addr 0x0, which is generally an invalid page fault... ie: page does not exist (not enough ram/pagefile)... this is a very specific error...
Also, I never even heard of this access denied error until I opened this thread. A lot of gamers disable the pagefile, to save writes to their SSD and to reduce/eliminate pagefile access and I'm one of them.
this is a fallacy. disabling pagefile will actually make your system slower. anything that is cached, must be rebuilt each time it's flushed... that takes a lot longer than simply paging some addresses from disk to ram... as stated previously: if you want to reduce pagefile usage, just buy more ram... also, this thing about extending life of ssds is not true. you may, after a few years, lose a few bad blocks, inconsequential. :\
Also I'm running Windows 8.1 Pro, which is more efficient with system resources than Windows 7.
nope, uses about the same. win 8.1 also has several memory optimizations over win7. performance-wise, prob faster.
anyways, to address your specific situation. as i said before, 20-24gb total (ram+page) is enough to get by, for witcher 3 at least and most games. i like 24 because it's a safe, round number. if you're running lower resolution and less apps (prob no antivirus either)... 16gb might be enough. but you're still losing performance, bcs windows can't properly cache anything from ram if it needs the space for something else... in practice, it's probably generating more disk activity, not less. and then you're going to run into various cases of stuff that's just brokendue to no pagefile. i could also think of a few graphical/video editing, memory-intensive applications, which would simply die a horrible death...
moral of the story: no pagefile = bad. more ram = good. pagefile usage reduced by sufficient ram.