Dead! Search the Web and Windows

Something seems to have changed, so that I am no longer able to type anything in to the search space. How may Have caused that to happen? And, please, how do I rectify?

Hi, could you clarify, perhaps with a screenshot to be sure, which search space?

Possibilities:
A browser search field
Explorer search
Settings search
Cortana search

Thanks!

Something seems to have changed, so that I am no longer able to type anything in to the search space. How may Have caused that to happen? And, please, how do I rectify?

Reading from your title, I have a feeling your Cortana is NOT enabled.

Before Cortana is enabled, the search bar will say " Search the web and Windows "



After Cortana is enabled, the search bar will say " Ask me anything "



As far as I can remember, if Cortana is not enabled, the search bar will not function.

@Both It is the grey version, yet I could enter something there for about a week after entering trial period. May it be relevant that I use Chrome 64 bit as browser, and had to reinstall it a few days ago?

What "trial period "?
You are running Enterprise evaluation version ?

I know nothing about Enterprise version.
I apologize and allow me to bow out.

Something seems to have changed, so that I am no longer able to type anything in to the search space. How may Have caused that to happen? And, please, how do I rectify?

Try it : Index - Rebuild - Windows 7 Help blog

Everything is identical for windows 10.

A single go may not work. Try it thrice. Rebuild > Restart > Rebuild > Restart > Rebuild > Restart
Hopefully the search function will be back at its place.

What "trial period "?
You are running Enterprise evaluation version ?

I know nothing about Enterprise version.
I apologize and allow me to bow out.

I mean the month in which one can revert to 7 or 8.

I mean the month in which one can revert to 7 or 8.

Oh. Sorry.
I misunderstood.
Is your Cortana enabled ?

If you press the Windows key and S, a Cortana window should open. Could you post a screenshot- and how many icons do you see down the left side?

Is any helpful message displayed?

If you open Settings, Privacy, General, do you see any message in red?

Click the Action Centre icon in the system tray - is the Location tile 'lit' (on)?

Have you made any changes to Language settings?

Do you have any system restore points you could use, or other backups (system image or disk image)?

@chipwood:
Have you run anykind of 'Anti-Telemetry' applications?
(There are many floating around the web, usually of the 'sketchy' kind)