Mathematica Version 11.2 desktop / Windows 10 Pro 64-bit

Autocomplete and Information icon no longer appear.

Practicalities of Using the Wolfram Language

Is there some setting someplace where I might have mistakenly disabled it.

Thanks in advance.

  • $\begingroup$ Had the same issue on a Linux machine yesterday. Deleting the .Mathematica directory fix it for me . But then you have to type in the activation key again. Unfortunately I don't now where that directory is located on a Windows machine. $\endgroup$
    – Armin
    Nov 26, 2017 at 20:24
  • $\begingroup$ related: mathematica.stackexchange.com/questions/160588/…, this might help - I had the same problem, and got it fixed this way $\endgroup$
    – mgamer
    Nov 26, 2017 at 23:02
  • $\begingroup$ PacletUpdate["EntityFramework"] then restart the front. $\endgroup$ Nov 28, 2017 at 17:08

1 Answer 1


Thank you all for your help.

I received the following two solutions from Mathematica Technical Support.

I used Solution 1. It worked. Fortunately, Solution 1 did not require typing in an activation key.

The next day, I received Solution 2 from Mathematica Technical Support. Solution 2 should be easier. I did not test it since Solution 1 had already corrected the issue.

Note that the following will display the User Base Directory:

Help menu | System information... menu item | Front End tab | Directories section | User Base Directory

******************* Solution 1 (Harder Solution )*******************

Thank you for contacting Wolfram Technical Support.

Can you please try these steps:

1) Close Mathematica.

2) Renaming your $UserBaseDirectory.

By default (for Windows 10), it is C:\Users\username\AppData\Roaming\Mathematica

3) Try using the autocompletion feature again.

******************* Solution 2 (Easier Solution) ******************

This is an easier process to resolve the behavior:

1) In Mathematica, evaluate


2) Restart Mathematica

This has just been tested this morning.

  • 2
    $\begingroup$ They would be more useful saying what exactly goes wrong, I have a lot of stuff in user base dir that I don't want to drop. And now I have to pick one after another to check. $\endgroup$
    – Kuba
    Nov 28, 2017 at 8:02
  • $\begingroup$ @John You can ask the support for more detailed information about offending subfolder of $UserBaseDirectory. $\endgroup$ Nov 28, 2017 at 12:39
  • $\begingroup$ Kuba and Popkov - I just updated Answer 1 with Solution 2 which is easier. Please let me know if it works for you. $\endgroup$
    – John
    Nov 28, 2017 at 20:47

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