Use one of the following steps to address this issue:

  1. Log on to the server with an account that has Local Administrator permissions.
  2. Grant the Windows User you are performing maintenance tasks with Local Administrator permissions.
  3. Grant the "Everyone" group "Full Control" to HKEY_LOCAL_MACHINE\Software\Microsoft\MSSQLServer\Setup
Note : Incorrect changes to registry settings can cause serious system problems that may be irreversible without reinstallation of the operating system. You must back up your registry before making any registry changes. We are not responsible for damage resulting from incorrect use of the Registry Editor.