You should be able to resolve this issue by manually deleting the Autocomplete History.
To Remove Autocomplete History:
- Go to your Desktop and hold the Windows Start key on your keyboard, and press the R key.
- Type inetcpl.cpl into the Run box and press ENTER.
- Go to the Content tab
- In the AutoComplete Section click Settings
- Click Delete AutoComplete history…
- Click Delete
- Then click OK
In the Auto-Complete Settings you are also able to choose what areas you want to use the Auto-Complete setting for.
You can also visit the links below for instructions to disable autocomplete in your browser: