Cannot delete registry key

I am running CCleaner 5.77.8448 (64-bit) on Windows 10 x64 and cannot delete the following registry key (after scanning with Registry Cleaner):

Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\CLSID\{265b1075-d22b-41eb-bc97-87568f3e6dab}]

[HKEY_CLASSES_ROOT\CLSID\{265b1075-d22b-41eb-bc97-87568f3e6dab}\LocalServer32]

@="C:\\WINDOWS\\SysWOW64\\Speech_OneCore\\Common\\SpeechRuntime.exe -ToastNotifier"

I would like to know if CCleaner has a more powerful method of deleting stubborn registry entries.

I have tried using several tools: AdwCleaner, RegASSASSIN, RegistryDeleteEx64. None of these worked.

Any help would be appreciated, thx.

There's already an active topic about this located at:

https://community.ccleaner.com/topic/59965-speechruntimeexe/

This topic is closed so as to not have multiple duplicates about the same exact thing.

In particular see this post in that thread:

https://community.ccleaner.com/topic/59965-speechruntimeexe/?tab=comments#comment-327320