As a globally renowned multinational bank, customer plays a crucial role in the healthy financial development and economic progress of developing countries. The Windows system has various security vulnerabilities, which need to be addressed by relying on one patch after another released by Microsoft. However, the internal network of customer cannot access the Internet and cannot download patches in a timely manner for updates. Therefore, customer needs to deploy a Windows Server patch update system to solve the problem of the inability to update patches within the bank's internal network. Microsoft has specially developed a patch update management software for the Windows system called Windows Server Update Services (abbreviated as WSUS), which can achieve the download of updates through a single server and the distribution of patches via the internal network.