Fennexx, I did a quick check and it sounds like you've got a 'memory issue'. Look up 'a guard stack cannot be created' and it mentions an issue where memory can't create enough pages. Apparently, it's more of a 'printing issue' but you haven't given any details on your rig so you'll have to look that up to nail down that problem. Also, whenever you have a crash look up 'Event Viewer' in window's 'Control Panel'. Go to the 'Windows Log' section and then select 'applications'. In the center column there will be messages concerning your crash. Anything with a red symbol by it will concern the crash. Read those messages and most times you'll find it's a memory issue, a .NET issue or a 'clsid' error. The main culprit will be GTAV, but sometimes its a mod and Event Viewer will point it out. The basic way to troubleshoot is pull your mods and work your way through installing them. If it's a mod causing a conflict it will usually be the last one you put in. So that means if you have '5 mods' in, and a crash happens when #4 went in, there's your problem child. Pull it back out and put the next one in to confirm.