Originally Posted by CrouZ
I have the same problem.
If you have set a password for the secure credential storage you need to do this each time you restart the phone. If you do not use the secure credential storage you can perform "Clear all credentials" to get rid of this issue.
I contacted HTC regarding this issue and was asked to perform a factory reset. This did NOT help.
I couldn't remember my password either but kept guessing and got a message telling me my credentials would be wiped if i kept doing so, needless to say i did so again and it wiped it but the good news is that it then allowed me to enter a new password and click on the use secure credentials option.