it's your hard disk space. You need to free up some.
If you want to know more about it google windows hard disk paging.
In general if your system hd (where your windows installation is) is at or more than 85-90% full, be prepared for unexpected program behavior and other problems such the one you have with wow.
I have 50GB free on my Boot SSD, just under 1TB free on both my 2TB drives and 40GB on my gaming SSD, so I don't think hard disk space is the issue However, thank you for the info as I googled it and learnt a bit more
- - - Updated - - -
Just a little update, ever since disabling SuperFetch and updating my Killer network drivers, I've yet to have the caution pop up, and this when playing WoW with addons and going up to nearly 12GB used RAM (which would definitely have thrown the caution before). I'm hoping, fingers crossed, that this has solved the issue, so I'd like to thank everyone who replied to my thread for helping!
Just out of curiosity, what size should I set my page file to be able to get to maximum?
Ok, I'll set it for 1GB and see how that works. Thanks!
edit: Heh, it was already set to 1024MB ;P So yeah, not changing anything.
- - - Updated - - -
ok... slight update. This time I got a WoW Error saying it had ran out of memory (not a Windows Caution thing)... and my WoW then closed. It has to be either an addon or something wrong with the WoW client... I'm going to try a repair or maybe a complete reinstall :/ Here's me thinking I'd fixed it!
Nobody has mentioned yet as far as i saw but these specific errors can (and often do) pop up because of VIDEO MEMORY (VRAM) usage - it's just not a system RAM thing. You should check your VRAM usage while playing and when those warnings pop up.
Windows 10 shitversary is the cause of almost all memory leaks. What a fucking disaster.
Dragonflight Summary, "Because friendship is magic"