So before discussing best Windows 10 custom themes, we will discuss many other aspects also like why? and how? After few days of Windows 10 launch, I started to look for best Windows 10 themes and found many ones including inbuilt Windows 10 dark theme. We can do many tweaks with default Windows 10 theme like the mouse pointer, wallpapers or anything basic things but are you satisfied with that? My answer is no. That’s why people look for Windows 10 custom themes. Window 10 has very good reviews for their UI but there are many critics also who said Windows 10 not good with default Windows 10 theme. Microsoft is popular in the market for the interface basically ( We know about their security ?). Computer Geeks mostly use Windows over any operating system due to its easy interface and user-friendly interfaces.