how to open two File Explorer windows on my screen. was able to do it yesterday but can't today

To open two File Explorer windows on your screen in Windows 10, you can follow these steps:

1. Open the First Window: Click on the File Explorer icon in the taskbar or press Windows key + E to open the first File Explorer window.
2. Open the Second Window: You can open another File Explorer window by clicking the File Explorer icon again in the taskbar or by pressing Windows key + E again. Alternatively, you can right-click on the File Explorer icon in the taskbar and select "File Explorer" from the context menu.
3. Arrange the Windows: Once both windows are open, you can drag them to the sides of your screen to arrange them side by side. You can also use the Snap feature by dragging one window to the left or right edge of the screen until it snaps into place, then do the same with the other window on the opposite side.

If you are still having trouble opening multiple windows, ensure that there are no restrictions set in your system settings or that your system is not experiencing any issues that might prevent this functionality.