Welcome to the forum.
These error messages are somewhat difficult to troubleshoot, as you will see if you look at http://aumha.org/a/stop.htm
Scroll down to the section dealing with STOP: 0x0000008E, please.
What I would do when I receive that message (I have received it) is:
a. Check Event Viewer for corresponding errors/clues that might help.
b. Check to see that my system is not overheating and blow out the insides with canned air.
c. Reseat each memory module (take it out, put it back in the slot properly) and blow out the modules with canned air while modules are out.
d. Try to recall any change of drivers/hardware that might be related.
Troubleshooting these error messages is a process of trial-and-error, eliminating suspects one by one, in order to hopefully arrive at a solution.
One other thing you might do is to make sure that all hardware devices are functioning properly, just in case it is a driver issue. I hasten to add that hardware items are not the only ones using drivers, since your firewall, your AV, music/video editors, etc. all use drivers. The drivers on any of these can become corrupt and create problems.