Windows 10 is the 9th OS from Microsoft. It is by far the best OS by the company. It has many new and clean interface. Clean and improved metro styled live start window. It has a new feature like multiple windows same as Linux OS. It is also fast and takes about 10-15 secs to start and get ready to use. It has a universal notification center which carries all the notifications from various applications as well as mails and other error reports. It is more secure then the previous OS versions. It also provides quick fix to all kinds of bugs. It is the best OS yet by Microsoft.