Netflix Error U7121 Windows 10 May 24, 2016October 23, 2018 Raza Ali Kazmi Sorcim Articles Netflix is a global television series and movies streaming service. It is extremely popular nowadays and helps people be entertained in their leisure time from the comfort of their home. One of the technical issues that plague Netflix sometimes is that it won’t play content and remain paused during playback. Let’s go through the procedure to resolve Netflix Error U7121 in Windows 10. Netflix Slow & Errors? Scan with ST Cleaner ST Cleaner Download (w/ Verisign Digital Certificate) Compatible w/ Windows 10, Windows 8.1/8, Windows 7/Vista/XP. Download Windows Updates Typically Windows Update automatically fetches the latest compatible updates for the Graphics Card and Sound Card, both of which are essential for a satisfactory Netflix experience. Type Updates in the Search box on the Taskbar. Click Check for Updates in the Search Results. Follow the updates download-installation procedure. Download Latest Silverlight Microsoft Silverlight deals with rich-Internet applications similar to the Adobe Flash plug-in. Netflix uses this plug-in perhaps because its class library files and components are developed with Silverlight. You must have the latest version of Microsoft Silverlight installed to enjoy Netflix streaming videos, films and television series. Reinstall Netflix The Netflix app installed on Windows Store might have gone corrupt. Or some of the installed program files might have gone missing, renamed, deleted or modified. Uninstall Netflix from the Start Screen and then redownload it using Windows Store. Click the Start icon on the Taskbar; choose Settings. Click All Apps icon. Right-click the Netflix app icon. Choose Uninstall option from the context menu. After successful removal, restart your system. Go to Windows Store. To do so, click Start | Store. In the Search box in the top right corner, type Netflix and then navigate to the Netflix app page. Click the Install button, and then follow the on-screen instructions. Scan System Components SFC identifies and overwrites corrupt operating system files with their original version. Open an elevated Command Prompt. To do so, press Windows Key + X; choose Command Prompt (Admin). Execute SFC /ScanNow command, and then follow the on-screen instructions. Update DirectX Make sure your system has the latest version of Microsoft DirectX installed. Visit the Microsoft DirectX installation page. Download the latest version and then execute the setup file. Follow the installer wizard; reboot after completion. Diagnose Internet Connection Netflix needs an ongoing, constant and uninterrupted network connection. Your internet connection might be experiencing network connectivity issues. Fix Netflix Error U7121 Windows 10 by resolving any such issues. Type Troubleshooting in the Search box on the Taskbar. Open Troubleshooting from the Search Results. Click Network and Internet | Internet Connections. Follow the instructions on your computer screen.