Listen to the sound clip Pop-up Blocked from Windows 8 Sounds: Pop-up Blocked Pop-up Blocked This sound is from Windows 8 Sounds Windows 8.1 is a major release of the Windows NT operating system developed by Microsoft. It was released to manufacturing on August 1, 2012, and later to retail on October 26, 2012. Windows 8 is the first version of Windows to su… Go to the full soundboardwith more sound clips Search