Windows 10 will be compatible with most existing PC hardware; most devices running Windows 7, Windows 8, or Windows 8.1 will meet the requirements for Windows 10. For full system requirements, see Windows 10 specifications. Some driver updates may be required for Windows 10. Existing desktop (Win32) application compatibility is also expected to be strong, with most existing applications working without any changes. Some applications that interface with Windows at a low level, those that use undocumented APIs, or those that do not follow recommended coding practices could experience issues. Windows 10 compatibility reaches most of the hardware currently in use. - The World of Windows. Contents: [ hide ] Windows 10 compatibility reaches most of the hardware currently in use. Existing Windows Store (WinRT) apps created for Windows 8 and Windows 8.1 should also continue to work, because compatibility can be validated against all the apps that have been submitted to the Windows ...