It is possible to reset or remove Outlook PST passwords on your own, but this is not recommended. The best way to restore your email security is to use Outlook plug-in that will automatically remove any password you forget or security feature that may have been disabled by Outlook. However, some people have problems remembering their passwords or disable features on their computer that may cause them to be unaware of any changes made to their account. If you have disabled or changed the security features on your Outlook PST email account without realizing it, you will need to go through the following process in order to reset your password and restore your email security:
Once you insert a password into your Outlook PST email account, any changes you make will be visible to anyone that uses your computer even while Outlook is running. If you still know the password but want to remove it, you will first need to change it or add it to the autofill list in Windows. You will then need to run the "regedit" command in Windows to be able to change the values that are stored in the registry. To do this, click Start, Run and type in "regedit" in the field that appears at the end of the window. Next, select "Safe Mode" to prevent changes being saved as you Restore your email account.
Finally, if you are still unable to remove Outlook PST passwords, you should download a free version of Windows XP Service Pack 2. This will be necessary for the Outlook program, especially if you are trying to use the built-in Windows XP support. Make sure you download the latest version of Windows, because previous versions of this operating system may not recognize or remove invalid entries. Finally, reinstall Outlook and other programs on your machine.