FIX: Cannot Drag Windows on Dual Screens (Windows 10)

When you drag a window between monitors, the window may stop at the edge of the screen and show a blue Snap indicator instead of moving to the other monitor. This means Windows is treating your action as a Snap-to-edge command instead of transferring the window.

The main reason is that the Aero Snap feature is too sensitive. Other possible causes include the monitors being arranged incorrectly in Display Settings, or trying to move a window that is maximized.

1. Disable Snap

Windows supports multiple monitors and includes several helpful features to make multitasking easier. One of these is called Snap. While Snap is useful for organizing windows on a single screen—helping you quickly resize and position them—it can be less helpful when using more than one monitor.

With Snap enabled, when you drag a window to the left, right, or top edge of your screen, Windows automatically resizes the window. This automatic resizing can interfere with dragging windows between multiple monitors.

There are two ways you can work around this:

• If you want to keep Snap enabled, try moving the windows quickly and directly onto the other monitor.
• Or, if you prefer not to use Snap at all, you can disable it.

1. Click the Windows (Start) button and open Settings.
2. Click on the first icon labeled System.
3. Go to Multitasking.
4. Disable the option that says “Arrange windows automatically by dragging them to the sides or corners of the screen.”

2. Re-arrange Monitors

If you used dual monitors before upgrading to Windows 10, sometimes the upgrade process causes Windows to “forget” the layout of your monitors. For example, it might swap the left and right screens, making it hard to drag windows in the direction you expect.

1. Right-click on your desktop and select Display Settings.
2. You’ll see a diagram showing which monitor Windows considers #1 and #2.
3. If the arrangement does not match your physical setup, click Identify to see which monitor is which.
4. Drag and rearrange the monitors in the settings window to match how your screens are set up on your desk.
5. Go to Advanced Settings if necessary for more options.
6. Click Apply to save your changes, and test to make sure you can now drag windows between monitors correctly.