Software problems with metatrader 5
If you really want a useful answer, then start by describing your computer's and operating system's specifications.
And, also take a look an the Event Viewer (if it is Windows), and see what errors are reported for both the System and Application logs.
I made some troubleshoots. Reinstall it a couple of times. Now it's good. Dont know what was.. Sorry for writing, but I didnt have any result for 2 hours..
mt5 is both memory hungry and cpu intensive. Depending on what you were running on mt5, your issue may reappear. Since your issue seems to be intermittent and 8gb, then, I would be more likely to blame the computer specs, than mt5. There are several threads on the forum describing intel systems becoming unstable when the cpu usage is above 90% or more.