Registry Editor has been disabled by administrator.

This error message may appear due to the virus activity or someone might have disabled Registry Editor in your system.

If this is the activity of the virus: Please remove the virus infection with any of the antivirus. Because without cleaning the virus this issue can not be permanently solved and the virus will once again disable the registry.

If someone has disabled the registry editor you can do any one of the following-

1.) Type gpedit.msc in RUN dialog box and goto:User Configuration -> Administrative Templates -> Systemin right-side pane, set "Prevent access to Registry editing tools" to either Not Configured or Disabled.

2.) Just type following in RUN dialog box and press :

REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableRegistryTools /t REG_DWORD /d 0/f

Or please copy the above command in the run dialouge box to resolve the issue.