Authentiication Required on starting ubuntu

[mahesh]

Hi complete Linux and Ubuntu noob.
Just made my new installation the latest Ubuntu desktop.
On first open, the system asked me to set a default keyring and so I put a random pass that thankfully I kept it written.
After that each time I start my pc (without my userpass required) the system asks me in a window

Authentication Required
An application wants access to the keyring
"Default keyring", but it is locked
it has a field to put in the password and below a "Cancel" or "Unlock" buttons.

If I press Cancel it does not let me access my pc if I put in the password the system is operational
Why it this happening and how do I get rid of it ?
THANK YOU