What are some of the new improvements in Windows 10?
Customizable Start menu.
Refreshed icons and graphics
Integration with Microsoft's digital assistant - Cortana, can be used for finding and retrieving information on the Internet and your PC, such as files. You can also use it to control applications such as the Music Player, prepare an email message or track a package.
Task View for managing applications using multiple desktops.
Modern apps can now be windowed and behave just like desktop apps.
Notification Center for centralized management of notifications and quick access to PC settings.
Universal applications that work not only on your Windows 10 PC, but also your mobile phone running Windows 10 and also XBOX One.
XBOX App for Streaming of live games to a PC or Tablet
Touch optimized Office applications (Word, Excel, Outlook, OneNote and PowerPoint). Providing the power of Office on devices with touch support. Users can edit, prepare documents, spreadsheets and presentations with full document fidelity regardless of device.
Continuum Mode - if you own a 2 in 1 form factor that works both as a laptop and tablet, you can easily let Windows 10 decide the best environment for you. Once detached into Tablet mode for instance, you can work in a more touch optimized user interface. Users will also be able to remotely use Windows 10 Mobile apps on their Windows PCs.
Microsoft Edge - Windows 10 will include a next generation web browser called Edge that support advances in Windows 10 such as Cortana for finding information on the web, Annotation, PDF support, superior reading experience.
Music and playlist integration in OneDrive.
Unified messaging using Skype Integration
Windows Hello and Passport for personalized authentication without the use of passwords.
Device Guard for protecting devices against malicious applications.
Support for media formats such as FLAC and MKV
Which features will be removed when I upgrade from a previous version of Windows?
Feature deprecation section
If you have Windows 7 Home Premium, Windows 7 Professional, Windows 7 Ultimate, Windows 8 Pro with Media Center, or Windows 8.1 Pro with Media Center and you install Windows 10, Windows Media Center will be removed.
Watching DVDs requires separate playback software
Windows 7 desktop gadgets will be removed as part of installing Windows 10.
Windows 10 Home users will have updates from Windows Update automatically available. Windows 10 Pro and Windows 10 Enterprise users will have the ability to defer updates.
Solitaire, Minesweeper, and Hearts Games that come pre-installed on Windows 7 will be removed as part of installing the Windows 10 upgrade. Microsoft has released our version of Solitaire and Minesweeper called the “Microsoft Solitaire Collection” and “Microsoft Minesweeper.”
If you have a USB floppy drive, you will need to download the latest driver from Windows Update or from the manufacturer's website.
If you have Windows Live Essentials installed on your system, the OneDrive application is removed and replaced with the inbox version of OneDrive.