The first step, after the Win+r regedit the Registry Editor;
The second step, from the top of the tree two branches (HKEY_CURRENT_USER and HKEY_LOCAL_MACHINE) to start positioning to run this subtree node, general current_user that permission settings should be okay, generally just see local_machine ; Right-click, select Permissions, pull out the permission settings box;
Third step, to view the current user name (I am t_back) permissions, at first I do not see my username, select Add, fill in the blanks with their current username; no errors continue, in the following allow here, make sure you just add the account to check "Full Control"; Close the Registry ( Or reboot explore.txt,logout, restart ...), reopen check this key value permission is valid;
Fourth step, Reload software, complete.
Full permissions:
Note
PS: Each 1406 of detailed content is different, but basically all according to this idea, plus permissions, if not created.
Hey, the above is the Windows Installer software report ERROR1406 processing method