Recently, I had one of my machine locked down to the state that this feature is actually gone. You won't miss it until you no longer have it. So poking around, I found a solution to re-enable it.
Simply open regedit (UAC prompt) and do this:
- Goto HKEY_CURRENT_USER > Software > Microsoft > Windows > CurrentVersion > Explorer > AutoComplete
- On the right, you will see 2 obvious options. But here is the explanation anyway...
- Append Completion set to “yes” will automatically append or complete the file name as you type, if there is a file that match.
- AutoSuggest set to “yes” will automatically suggest a list of files in the folder that match what you had typed so far in Save As Dialog box.
Simple enable one or both of the option to turn Autocomplete back on.