How to fix 'unregistered class' error in Google Chrome

Are you receiving unregistered class errors when trying to open Google Chrome? This annoying (very annoying) error can happen due to various reasons, ranging from corrupted DLL files to registry entries. Although the problem seems somewhat unsolvable, some procedures may help to resolve it. To help with this task, this tutorial will address the issue and show you the possible solutions, so that you can get rid of that annoying message and calmly navigate again.

Google Chrome Tutorials and Tips

See tips on how to fix the 'unregistered class' error in Google Chrome

Since you can not know for certain what the cause of the 'unregistered class' error is in your Chrome, you should try different solutions. The following three procedures can solve the problem. So if one tip does not work, move on to the next one until you can run Chrome without the error appearing.

Deleting Some Registry Keys

Deleting some Chome-related registry keys can prevent the error from appearing. To do this, you must do the following:

First, type "cmd" (without the quotation marks) in the Windows search field. In the list of results, right-click the "Command Prompt" option. In the menu that appears, click "Run as administrator";

Running the Command Prompt as Administrator

Then, when the Command Prompt screen appears, enter the following commands in it, key in and confirm each one;

REG DELETE HKEY_CLASSES_ROOT \ Chrome

REG DELETE HKLM \ Software \ Classes \ Chrome

REG DELETE HKCU \ Software \ Classes \ Chrome

REG DELETE HKLM \ Software \ Classes \ ChromeHTML \ open \ command \ DelegateExecute

REG DELETE HKCU \ Software \ Classes \ ChromeHTML \ open \ command \ DelegateExecute

Deleting registry keys related to Chrome

Starting Chrome directly

Another alternative that can avoid the error is the direct execution of Chrome, using the start command. Just run the command below in the Command Prompt or run window. Do not forget to change the location if you have installed Chrome in a directory other than the default one.

start / d "C: \ Program Files (x86) \ Google \ Chrome \ Application \" chrome.exe

Running Chrome directly via start command

If you prefer, you can even create a shortcut to execute the command.

Registering all DLL files

Windows DLLs can also cause the 'class not registered' error in Google Chrome. If none of the tips were to remove the error, you can re-register all DLL files to eliminate this problem.

To be able to register these files, all you have to do is run the following command at the command prompt.

FOR / RC: \% G IN (* .dll) DO "% systemroot% \ system32 \ regsvr32.exe" / s "% G"

Registering all Windows DLLs

Once all the DLL files have been registered again, you must restart your computer.

At least one of these tips will eliminate the annoying message 'class not registered' when using Chrome. If this does not happen, leave a question in the Forum explaining the details of your problem.