Cannot enter password to reset keychain I'm trying to reset my keychain (Yosemite 10.10.4).


When I enter my wifi password I get "A keychain cannot be found to store my_wifi_sid"
I click "Reset to Defaults"
I get "Are you sure you want to reset your keychain? This will delete all your saved passwords, keys, and certificates. You cannot undo this operation" and click "Reset"
I get "Please enter your login password. This password will be used to create your new keychain." with a password field.  Attempts to type in this field interact with whatever app is in the background (browser, desktop).  I can click the "Show password" checkbox.


This issue has also been reported at https://discussions.apple.com/thread/6788761.  Upgrades did not help.

Deleting keychain folders via the command line ends up with the same result (not saving passwords and the above dialog).  This started about a month ago and does not appear to be associated with any system update.

Any tips on troubleshooting, logs to look at would be appreciated.

Update

tl;dr: disabling the Guest User and upgrading to El Capitan seems to have done the trick. 

Not what I'd call an answer since I can't tell you which action is the fix, but here are two things,  one or both of which may have solved my problem.

I tried to log into the Guest User on this machine and learned that somehow I got a not-managed Guest User account.  This Guest User was asking for a password (which I did not know).  So I disabled the Guest User account.  

Disabling the Guest User account seemed to solve this issue for some (but not all) of the users.  Next I downloaded the El Capitan installer to a thumb drive and installed it on my MacbookPro.  Now all of my keychain issues appear to be fixed.
I had the same problem.  Following the steps in this article helped me resolve my issue:


Open Keychain using Spotlight (⌘-Space)
Go to Keychain Access → Preferences
Click Reset My Default Keychain
Restart your Mac