New
#21
Let me get this straight (correct me if I'm wrong).
You installed W7, and obviously the account you created during installation was an administrator account.
You then activated the built-in administrator account, gave it a password and then from that account changed the other account to a standard account before disabling the built-in account.
The reason you are getting these prompts without the ability to accept a password is because the only administrative account on your machine is currently disabled.
What you should have done is to create a separate account but give it standard privileges. You should then use that account instead. I would reenable the built-in administrator account, change the account back to an administrator (give it a password) and then create a new standard account for everyday use. You can change UAC level so that you won't be bothered by as many prompts, but note that disabling it altogether substantially weakens the security of your system. Don't forget to disable the built-in administrator account afterwards.