Are you having problems with Outlook not saving your passwords despite having clicked “remember password” several times. The problem is most likely solved by perfoming the following actions.
Check the permissions on:
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Protected Storage System Provider
Then make sure the current user and system have full rights to this key and all keys / values below it.
Try Outlook again. If it still isn’t fixed simply delete everything under “HKEY_CURRENT_USER\SOFTWARE\Microsoft\Protected Storage System Provider”, but not the key itself and try again.
Profile: John has administered networks of various sizes for many years and also dabbles in PHP web development. More articles. 
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Thank you much for the subtle difference in directions between your note here and Microsoft’s website. You smartly state that you have to have full permission to delete the subkey under the System Provider. As I couldn’t delete the subkey before, you kindly rung a bell with your info.
Thanks!
No worries, glad to help.
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We are currently running Win 2003 enterprise server, with around 15 clients. Of late we have bee having problems with outlook 2003 on some of the clients. It keeps asking for the newtwork password all the time. Could you kindly help. I wanted to go to the regedit, but have to be sure that its a reg problem. And also another problem arose last week. One of the workers was working with AutoCad, and tried to édit it and save, but this is what came up:
Windows was unable to save all the data for the file x.
The data has been lost.
This error may be caused by a failure of your computer hardware or network connection. Please try to save this file elsewhere. We will try and run a memory test and see if the Ram or cache memories are in order. If some one has an idea, please kindly get in touch. Thanks, Dave
Hey Dave, I’ve flicked John an email about this so he’ll probably get in touch soon.