LittleBigMouse detached my display and now windows cannot detect the display

[moltennacl]

I was messing around with LittleBigMouse to try and align my monitors when I clicked the "detach" button which caused my second display to instantly turn black. I restarted my pc hoping to resolve the issue, yet now windows cant even detect my second display. Tried reinstalling Nvidia driver but that didnt help.

[salzg]

Just had that happen to me. A simple Win + P and selecting "Extend Displays" fixed it for me.