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How can I make Windows accept more than one password as the correct password at the logon screen? What registry key do I change, or what setting?

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    I am fairly certain the answer is that there's no supported out-of-the-box method for doing this. I'm not making this an answer because there may be a non-out-of-the-box method for doing this (but I don't know it). – Shinrai Sep 7 '11 at 20:53
  • Just give them the same password and tell them it is their own very special password and that your feelings would be terribly hurt if they changed it. – EBGreen Sep 7 '11 at 21:08
  • edited question. – wizlog Sep 7 '11 at 21:27
  • It's possible to allow multiple users to share the same profile directory so they share the same desktop, files and settings. But it's extremely tedious to setup. You'd be better off just using different users and setup some privileges to allow them access some shared files. – billc.cn Sep 7 '11 at 23:19
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    I can see this causing huge incompatibilities and breaking others . . . – surfasb Sep 8 '11 at 1:37
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I doubt that would be possible. It's probably possible to have two accounts share the same profile though, if you adjust the NTFS permissions appropriately. If it is possible, it would probably be best to not have the two accounts logged in at the same time.

  • they wouldn't be... – wizlog Sep 7 '11 at 21:01
  • This answer is incomplete and a comment at best. Without detail instructions how to achieve this, this answer, isn't really helpful. – Ramhound Oct 14 '15 at 12:47
  • This does not provide an answer to the question. To critique or request clarification from an author, leave a comment below their post - you can always comment on your own posts, and once you have sufficient reputation you will be able to comment on any post. – Ramhound Oct 14 '15 at 12:48
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No, this is not possible under Windows. For each user a single spot is reserved for the password hash of each user in the SAM database.

Under Windows 10 you can also assign a PIN to a user which can be used to log on locally to the machine, effectively giving you a second password that that purpose only.

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