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A couple of days ago I changed my Windows 7 login password. My laptop is on my company's domain, so password changes are done over the internal network.

Since changing the password I noticed that all my saved Chrome passwords are missing. Also Skype, Windows Live, Internet Explorer and Outlook lost their saved passwords. I guess there could be more applications with lost passwords, but I have not opened them yet.

This makes me think that most applications saves their passwords to a general password vault on the Windows system and this vault got somehow corrupted when I changed my domain login password for windows.

Do anyone have any idea of how to fix this and prevent it from happening again?

EDIT : More Info

I do development work at the office, so most of the time I bypass the firewall and connect directly to the internet gateway. Now and then I would connect to the company wifi network to do printing and access files on a NAS. So by default my laptop does not connect to the wifi hotspot.

On this occasion to update the password, I had to connect to the wifi. So referring to the comment by OmnipotentEntity below, could this have happened when the system rebooted without a connection to the network as the laptop does not auto connect to the wifi hotspot?

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There is no password vault or keyring. However, it does sound like you lost your userprofile or roaming data. –  iglvzx Jul 4 '12 at 7:20
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Here's another possibility. I'm not certain now to prevent or fix it with a domained computer. Your files were Encrypted by the filesystem, which uses a key which is itself encrypted by your password as stored in the SAM hive, if you change your password via a domain setting, the key's encryption might not have been updated. –  OmnipotentEntity Jul 4 '12 at 7:22
    
Is there anything I can check or do to confirm this? –  Rynardt Jul 4 '12 at 7:47

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