What's the windows 10 equivalent of "Command `" on a mac [duplicate]

For those who don't use a mac, command ` cycles between windows of the same application just like alt tab.

I was wondering if there is a windows 10 equivalent ?

There's no equivalent to Command+` on Windows. You cannot cycle through open windows of an application if the application itself does not provide such functionality.

As mentioned in another answer, you can use Ctrl+Tab to cycle between tabs or Ctrl+F6 to cycle between open MDI windows.

Yet you can use Windows+digit where digit corresponds to the number of your application button on the Windows Taskbar.

For example, if Firefox has several open windows and its button is the fourth in the taskbar, then pressing Windows+4 will display the list of open Firefox windows. If you release the keys, you'll switch to the first Firefox window.

Pressing 4 while still holding Windows key will highlight another window. (The window you're about to switch to will be displayed on the desktop and other open windows will be displayed as a “shadow”.) So press 4 until you see the required window, and then release both 4 and Windows to switch to it.

Alternatively, you can press Ctrl+Alt+Tab: it will display the same window switcher as Alt+Tab but it won't disappear after you release the keys. Then you can use mouse or arrow keys to select the window you want to switch. Press Enter to confirm, or click it.

Actually, you can use arrow keys or mouse with the regular Alt+Tab switcher, just don't release the keys until you selected the required window.

Well you could use CTRL + TAB when the window is in focus. This will cycle through for example the tabs on Internet Explorer.

The key mapping for Windows keys to Mac keys is as follows:

Mac Key --> Windows Key
Control --> Ctrl 
Option  --> Alt 
Command (four leaf clover) --> Windows 
Delete  --> Backspace 
Return  --> Enter 

But this does not mean that the shortcuts will work the same. So the Mac's CMD (command) key iterates through all the same programs. Windows CTRL + TAB will only iterate through tabs in the same program.

Info found here.