Okay listen, I'll go over this in order:
For MONTHS, this has been happening on Windows 10 ONLY.
When I USE CCleaner, ALL Saved Passwords are cleared from my browsers.
When I close the browser everything remains, however when I USE CCleaner, it's all gone.
Both CCleaner and the Browser are NOT Checked, to remove Saved Passwords.
Everything is the same as when I used the App and Browsers on Windows 7.
So yes, I have to re-enter login details (Username & Password) when going to any website that I login to, AFTER using CCleaner.