You are here because you are bored with the same Windows’ default theme. For some unknown reasons, Microsoft does not like these themes, granted that when too many skins are made available, it becomes very hard to troubleshoot a problem as the technician on the other end doesn’t have the same user interface as the caller.
If you use a Windows OS then you are familiar with the term “Windows Theme”, sometimes referred to as “Windows Skin”. There is a slight difference, if it is a third-party software, then it is referred to as “Skin”. Here are some of the best Microsoft Windows 10 themes, one of the most downloaded themes is none other than macOS’s default style.
Note: Not advisable to install these themes on a slow PC as these skin might slow down the performances of your computer. I suggest an i7 or i9 processor with an above average graphic card.