i'm having some problems with the Microsoft Update. i've been updating the OS (MS Update service) for the past 5 months. But recently i did not use my PC for 25 days. Now when i try to update the OS Manually thru Start->All Progs.->Windows update it shows me the following error. -> see pic "ms.jpg" & "ms1.jpg". and when i try to update Microsoft Defender (Beta2) manually, it shows the following error;;; "windows defender was unable to update : error - 0x80244001" What could be the problem???? Will uninstalling "Windows Installer 3.1 " from "Add/Remove Programs" & then manually updating the OS from Start Menu Solve the Problem. P.S. I've run Virus Scan & malware scan both in NORMAL MODE & SAFE MODE, but did not find any thing. -------But Previously ( 1 month ago) AVG Free detected 2 Trojan at a time, when using IE, for two days.(totally 3 times, i removed it) My PC Config., HP Pavilion, 256MB RAM, XP Home Edition SP2, AVG Free, ZoneAlarm Firewall, Windows Defender, A-Squared Anti malware.