Using a Mouse: DeskPins
If you prefer using a mouse over keyboard shortcuts, DeskPins provides a super simple way to make windows always on top by just pinning them.
First, you’ll need to download and install DeskPins. After installation, go ahead and run DeskPins. You’ll see that it adds a pin icon to your system tray.
When you have a window you want to pin to be always on top, click that system tray icon. Your pointer turns into a pin and you can then click any window to pin it so that it’s always on top. Pinned windows actually have a red pin added to the title bar, so that you can tell easily which windows are pinned and which are not.
To remove a pin from a window, move your mouse over the pin. Your pointer will show a small “X” on it to let you know you’re about to remove the pin. And if you want to remove pins from all windows you’ve pinned at once, right-click the system tray icon, and then choose the “Remove All Pins” option.