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0x6: The handle is invalid.

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Trying to update CCleaner using the link at bottom right. When I go to click on Update Now, I get the following message.....0x6: The handle is invalid.

Can someone explain why this is happening and hopefully tell me how to fix it?

I'm running V5.67.7763.

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'0x6 handle is invalid' is a Windows error code. Something is stopping Windows from fetching/applying the update.
(Have you updated your Windows recently, that can sometimes cause 0x6 errors).

Try downloading the 'Slim' installer from here and double clicking it to install the new CCleaner version.
Make sure that your current CCleaner is not running (If you have Smart Cleaning enabled turn it off) before installing the new one.

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