Is your computer under any domain, then you need to access domain controller to set group policy to have access to update.
1. Open regedit, or whatever you use to edit your registry.2. Go to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\IUControl3. Modify the SelfUpdateStatus key (be sure to choose base:decimal) from 0 to 2
go to run type gpedit.mscExpand User Configuration, Administrative Templates, Start Menu and Taskbar.Double-click "Disable and Remove Links to Windows Update". Select Disabled and click OK and close the gpe.
Is your computer under any domain
GPEDIT.MSC should work
you will type "gpedit.msc" exectly without quots
I have attatched it as zip, download it unzip it and place it in your system32 folder and then run it.
ANS: Is your computer under any domain?