Steve C said: View Post
I had problems a while ago with a corrupt user profile when creating a new account. Could you copy over the default profile from another known working PC having the same Windows version?
GUID mismatch. I don't think it works.

Steve C said: View Post
Why do you have to boot from other media to copy the profile?
Permission issues. You can try copying a user profile over Default from Windows desktop, it won't work giving Access denied error.