Editor freezes when not in focus, unable to kill process, need to reset PC in order to use Unity

Running into a really strange problem, which is completely blocking me from working in the editor.

When I launch the editor, and use an existing scene or a brand new project and scene, if I leave the editor alone and do something else for a bit, say use Maya, go on Facebook, whatever, and then return to the Unity Editor window, it completely locks up. Clicking on the UI doesn’t do anything, I can not interact with any menu, not even the Minimize/Maximize/Close buttons, nothing functions. The screen doesn’t even go white.

If I attempt to kill the process through my task manager, I can’t. After clicking “End Task”, the process still stays, and then attempting to do that again, it gives me a “Access is Denied” error, leaving me unable to kill Unity.

The only way to kill the process as far as I can see so far, is to do a full system restart. This makes the editor completely unusable for me, since I can’t do any work between different applications and Maya.

I have tried killing all non-essential programs while Unity is running and removing any external storage devices, and the problem still persists.

I am running the latest “stable” release, 5.5.0f3, on Windows 10. I have a GTX 1080, with the latest Nvidia Drivers. This is also a fresh install of Windows 10.

Has anyone else run into this problem? I have been unable to find a similar post/solution.

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Bumping this thread, I’m still stuck…

Tried cleaning out my registry, deleting all local prefs folders (under appdata), tried forcing my GPU to always be used instead of integrated processing, disabled G-Sync, still nothing.

What does the editor log say?

Do you have visual studio open when it hangs? (sometimes there is that ‘reload project’ dialog that seems to block unity…)

Here’s a paste of the editor log
http://pastebin.com/VNur7cNu

I do not have visual studio open at all. I am primarily an artist, so the only applications I would have open are the editor itself, Maya, and Photoshop. It will hang even if I have nothing else open and leave it alone for x number of minutes.

I believe I have found the problem, as weird as the solution is, I think Corsair Link was causing my freezes. When Unity failed to open/respond, closing Corsair Link caused Unity to immediately work again. I think that Corsair Link was hooking into Unity somehow, which caused it to completely lock up or fail to open. So far I haven’t run into the issue again after disabling CL, so I think my problem is solved; but I will update it for some reason it locks up again.

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