Onlydarksets

I couldn’t have said it any better than this person:

Problem: I can not save my user credentials (username and password) for my SharePoint site when I’m using Internet Explorer 7.0. I keep clicking the check box next to “save password” but it doesn’t seem to work and I’m constantly prompted to re-authenticate when I access the site or move between areas with different permission schemas.

Solution: Remove your site from Trusted Sites if you had added to this list and then change one security setting for the Internet Zone in IE 7.0. Follow the steps below –

1. If you have added your site to “Trusted Sites” in Internet Explorer remove the site from the list by going to Tools>Options>Security Tab>Trusted Sites>Remove your site URL.
2. Return to the Security Tab>Select the Internet Zone>Custom Level>Scroll all the way to the bottom of the list. Under User Authentication check “Automatic logon with current username and password.” Click OK twice and return to Internet Explorer.

Close all instances of Internet Explorer and then reopen Internet Explorer, return to your SharePoint site, authenticate and save your username and password. This will clear up your problem.

Warning: Even though this solution will get rid of the annoying re-authentication prompt its not always a good idea and 100% safe to cache your credentials, or anything for that matter in your browser. – Thank you to Chris Hayashida at Prosum for raising this important point.