Some users, and not the majority, namely the ones who use the tenth version of Windows as their main system, recently encountered the problem that the Start menu and the Cortana application do not work. Why this happens is not known for certain. However, you can immediately find the answer, since not all Russian-language functions are available in the new system. But first things first.
To begin with, we will examine the very reason for the occurrence of such situations. There may not be so many, but sometimes there are extremely negative points. The solutions under consideration do not contain any third-party tools that could disrupt the operation of the operating system. The main emphasis is exclusively on Windows tools.
Why does the error appear?
In general, I want to immediately ask all users: who told you that Cortana will work in the Russian version of Windows? This by the very nature of the application can not be! Anyone who is trying to activate the assistant in Russian either does not completely understand what is at stake, or is so far from setting up computers based on this system that he does not know that the assistant for Russian-speaking users has not yet been released (and in general, it is not known when it comes out, although the official release was planned for the end of 2016, based on statements by Microsoft executives).

No, of course, some craftsmen can launch an assistant, changing English phrases to Russian-speaking. But this is not the original. Without switching to English or another, different from the Slavic languages, the Cortana shell will not work. This is not discussed. Therefore, even raising the question of why the Start menu and the Cortana application do not work is completely incorrect. In Russian-language systems, this module is not available at all! So it cannot cause any malfunctions due to its deactivated state. Judge for yourself, because in fact the service is disabled, its module is deactivated, there is not even an autoload of the executable process at system startup.
Moreover, it is worth noting that when switching to another interface, you must download the language file. If it is not, the transition, whatever one may say, will not take place. By the way, this file is used not only for the external shell (graphical interface), but also for the Cortana helper herself.
And yet, what operations should be undertaken if the Start menu and the Cortana application in Windows 10 do not work?
What to do?
But suppose the user still changed the interface language to one of the supported ones. The problem that the Start menu and the Cortana application do not work can also occur in this case. This is due to pre-loaded service packs that were not ready for installation. But most often the error appears even after a complete reinstall of the system (and even after downloading all available updates and upgrades).
First, you can try to restore the configuration, which was fixed as the last working one. To do this, use the F8 key (if activated) or the entry mode in the corresponding menu with the choice of the seventh item. But for this it will take a long time to sort through various kinds of menus related to diagnostics and selective start-up, or even boot from removable media, after which you can use the bcedit commands to set the legacy boot parameters to activate the same F8 button, but this is not about that.
After that, you need to call the standard "Run" console and register the msconfig command (system configurator) in it. In the main window, on the general settings tab, you need to uncheck the GUI boot point, then save the changes and reboot the system.
But what is a GUI? And this is a graphical user interface. In other words, disabling this function, we get rid only of the user's personal settings, but do not disable the entire system interface as a whole. In general, such a move can only reduce the load on system resources in terms of displaying graphics, nothing more. And if someone thinks that after applying such options, the system that is called βfliesβ, he is deeply mistaken. Nothing of the kind will happen.
The Start menu and the Cortana application do not work. How to fix?
Another way to remedy the situation is to install a selective launch in the same system configurator and proceed to system recovery.
If this turns out to be ineffective, you can use the computer to return to its original state (as a last resort). But, before applying such cardinal actions, you should first check the system components through the command line (sfc / scannow) or try to restore the system using DISM tools.
Utilities like Fix It from Microsoft can also be used. Such programs are universal and designed to eliminate many problems in Windows-systems, not related to any one class, but grouped by common features. But, in the end, you should not rely on them especially. As Windows systems were completely unfinished, they remain. But with the knowledge of the necessary commands, they can sometimes be brought to mind.
Total
What is the result? The only thing is that when a critical error occurs (the Start menu and the Cortana application do not work), you need to disable the loading of the GUI, noting that the system services and startup items are loaded to start the system. It is imperative to tick the line using the original configuration. Perhaps this is how the Windows services and services will be restored. And although the experts who recommended them cannot guarantee the operability of the above solutions, nevertheless, in practice, such methods work (they do not always, true, but they work anyway). And to neglect such techniques is not worth it.