If you find that your Windows Update is stuck downloading updates at 0 % or any other figure in Windows 10, Windows 8.1, Windows 8, Windows 7 and Windows Vista as well, window customer support will help you fix the issue.
Windows Customer Support and Support is available to help you with questions about Microsoft products and services. In this case, a Microsoft representative will help you locate the appropriate resource or team to answer questions. This is meant to be used if you have general customer service questions Windows Customer Support will provide support options and locate the appropriate support team to resolve technical support issues, which you may be facing. This may include self-help support or assisted support.