Quite often, many users who use the Google Chrome browser to surf the Internet encounter an unpleasant situation when the system writes “Class not registered” instead of starting the program. Why this is happening, and how to fix this kind of malfunction, now let's try to find out.
The essence of the error "Class is not registered" (Windows 8)
In general, let’s notice right away: this error is mostly typical only for the Google Chrome browser, and it began to appear only in Windows 8 and later versions of the “OSes”.
If suddenly a message appears on the screen when the browser starts that the class is not registered, this can be given one explanation. The fact is that in the G8, the browser integrates into the system and launches in a slightly different way than it was in previous versions. The program is launched not through a shortcut that refers to the executable EXE file, but through the Class ID. We will not climb into the jungle of computer software, but confine ourselves to this explanation only. It will be clearer further.
Causes of the error
As already clear, in the event of a failure with the message “Class is not registered”, it is simply not possible to initialize the launch of the browser using special registry keys (in particular, even when trying to install Google Chrome as the default browser when the program itself is prompted).
In this case, you need to install the browser as the main tool for viewing web content from the special section of the programs by default, which can be found through the search or in the Control Panel.
Also, the problem of the appearance of the message “Class is not registered” may be related to the situation when installing a new version of the browser over the old one without first deleting it. Thus, the simplest solution suggests itself, allowing you to fundamentally correct the situation.
The easiest way to fix
Yes Yes! This is exactly the removal of the program. Here are just a typical uninstall by Windows means it is completely incomplete, since the keys that are partially deleted remain in the registry. The same applies to the files on the hard drive in the directory with the program Program Files or Program Files (x86).
Here it is better to use utilities like iObit Uninstaller, which are able to perform a deep scan for residual objects and delete them completely and completely. But after such a powerful removal, you should find on the Internet (best on the official resource) the latest version of the browser and reinstall Chrome again.
Error “Class not registered”: editing registry entries
But what to do when the user does not want, for example, to lose bookmarks? It is clear that you should not delete the browser. But here the message "Class not registered" will appear again and again. As the simplest tool, you can previously use the export of bookmarks to an HTML file. But you can do something else, although the proposed method is quite complicated. First you need to right-click on the browser shortcut and select the property bar from the menu.
Now, on the shortcut tab in the lower left, click the file location button, after which we select the latest version of the browser and go to the directory itself. Now copy the full path from the address bar. It is better to save it in some text document, for example, in a text file created using ordinary Notepad.
Next, in the menu "Run" (Win + R), we write the regedit command and enter the registry editor. Here we need a search, called either from the main menu, or by Ctrl + F, or simply by pressing F3.
In the search query, we write the combination 5C65F4B0-3651-4514-B207-D10CB699B14B, and then we enter this branch. Here we are interested in the LocalServer32 subfolder, in which there is a Default key or two (one more is ServerExecutable). Each record must be opened for editing and enter in the appropriate fields the path to the file that was previously copied. After that, the problem should disappear. By the way, the search can be set precisely by the name of the folder if this branch is not found.
Just in case, you can repeat the search. If you suddenly find any more keys, except for two edited ones, they should also be changed. But in general, as practice shows, such simple manipulations are enough.
Finally, it remains to add that the problem may be associated with some add-ons. In the most common version, you may need to reinstall Adobe Flash Player, after downloading the latest current version from the official resource.