On my system virus attack and cancelled all system privileges.Including regedit,gpedit.msc,control panel. Though i logged into "Administrator" i got an error:"All rights are disabled by your administrator". Then i installed anti-virus program and removed all virus and Trojan programs from computer. Still my problem not solved then i searched i found a answer for it..My solution for this problem is as follows:
Go to Start->run in that type the following
"REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableRegistryTools /t REG_DWORD /d 0 /f"
Remove the double quotes. Here i used to quote that command. After enter on your press enter. You will realize something runs on your system..
Now run Group editor policy on your computer by typing gpedit.msc under run. In that select
User Configuration->Administrative Templates->System
under System you will found "Prevent access to registry editing tools" right click on it select properties.
on properties window Prevent access to registry editing tools option select Not Configured.
If its already Not Configured option is selected. Select Enable click ok then right click on the Prevent access to registry editing tools now set the properties to Not Configured. Now run regedit on your system. Likewise run control panel on your computer.
Go to start->run gpedit.msc.In that select
User Configuration->Administrative Templates->Control Panel.
under control panel select "Prohibit access to control panel"
on properties window Prohibit access to control panel option select Not Configured.
If its already Not Configured option is selected. Select Enable click ok then right click on the Prohibit access to control panel now set the properties to Not Configured.
