Updates are being applied every time computer is switched on

Hi, the belwo mentioned 5 updates are being applied every time i switch on my laptop since last two weeks. Security Update for Microsoft .NET Framework 4 on Windows XP, Windows Server 2003, Windows Vista, Windows 7, Windows Server 2008 x86 (KB2487367) Security Update for Microsoft .NET Framework 4 on XP, Server 2003, Vista, Windows 7, Server 2008 x86 (KB2656351) Update for Microsoft .NET...