My mouse pointer kept getting stuck between monitors in Windows 8.1

My mouse pointer kept getting stuck at the edge between monitors
My mouse pointer kept getting stuck at the edge between monitors

A couple of weeks ago I noticed a strange behaviour with Windows 8.1. I have two monitors and whenever I tried to move the mouse between them my mouse pointer got stuck in the middle.

I would have to back up the mouse pointer then move it really quickly to get over the ‘hump’, and reach the next monitor.

Not the charms bar

At first I thought it may be caused by the Windows 8 charms bar. So I switched off the top-right corner navigation under Charms bar > Settings > Change PC settings > PC and devices > Corners and edges.

But it turned out not to be that. The mouse pointer blocking behaviour continued.

Not ModernMix

My attention then turned to ModernMix™, a Windows 8 application from Stardock that allows Modern (Metro) apps to run in a standard window on your desktop.

I had noticed this behaviour only after I had installed ModernMix, so I reasoned that it must have caused it. And sure enough uninstalling ModernMix seemed to stop the behaviour… until I rebooted the PC.

But I didn’t discover this until after I had emailed Stardock support.

Registry hack fixes it

Stardock support were incredibly helpful. The following day I received this reply:

While I can reproduce what you are seeing, I can do so without MM installed. It seems it is a thing with 8.1:

http://winaero.com/blog/fix-mouse-pointer-sticks-on-the-edge-when-moving-between-multiple-monitors/

Please let us know if you should have any further questions/concerns.

And sure enough, the Winaero blog had the solution:

  1. Open Registry Editor (Ctrl + R, then type: regedit)
  2. Navigate to HKEY_CURRENT_USER \ Control Panel \ Desktop
  3. If there is not a DWORD (32-bit) Value called MouseMonitorEscapeSpeed then create one and assign it a value of 1.
  4. Navigate to HKEY_CURRENT_USERSoftware \ Microsoft \ Windows \ CurrentVersion \ ImmersiveShell \ EdgeUI.
  5. If there is not a DWORD (32-bit) Value called MouseMonitorEscapeSpeed then create one and assign it a value of 1.
  6. Reboot Windows, or restart the Explorer shell.

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