A、Configure all client computers to use Automatic Updates to obtain security patches from the Windows Update Web site. Test and install all patches

B、Configure a batch file to download security patches daily. Distribute the security patches by using a.zap file and the Default Domain Policy Group Policy object （GPO）

C、Deploy a Software Update Services （SUS） server. Test all security patches and then approve them. Configure all client computers to automatically obtain updates from the server

D、Configure a batch file to download security patches daily. Manually install the security patches on all computers