If your Windows operating system may not be updating properly (see Control Panel\System and Security\Windows Update\View update history) via a proxy server, this instruction may help.
netsh winhttp show proxy
netsh set proxy facultyproxy.upd.edu.ph:8080
netsh winhttp show proxy
net stop wuauserv cd %systemroot%\SoftwareDistribution ren Download Download.old regsvr32 %windir%\system32\wups2.dll net start wuauserv NET START BITS NET START WUAUSERV SC QUERYEX BITS SC QUERYEX WUAUSERV
You may be prompted for your username and password to be able to use the proxy server to update Windows.