This issue has been plaguing me lately. As many others, I'm also on Windows 10 64-bit, fully up-to-date with latest drivers etc.The main difference I've seen among other posts, is that I run a dual monitor setup, which allows me to actually alt+tab.So to all those who might've been doubting whether it was just GW2 or the entire system locking up, it's just GW2.I'd be on Discord with my buddies and the game would freeze, usually in the inventory or character screen. Then I'd still be able to talk to them, switch to taskmanager, end task, reboot, and back in the game.I've tried the Repair function, didn't help. Some times the game lets me play for hours without issue. Other times, like yesterday, I had the crash 3 times within an hour and then not anymore for several hours.Today it's been 30 minutes and it's frozen again. This is very annoying though. Really wish there was a fix for it...