Your efforts in bringing this to our attention is valued, don. Together, we'll go through the steps for performing a manual update to ensure your QuickBooks is operating at its best.  Let’s get started on resolving these issues together.

When updating QuickBooks Desktop, problems with writing to the system registry can occur. This may be caused by antivirus or security software. To resolve this, besides the suggestion made by Chrea, you can manually update QuickBooks to get the latest enhancements and essential fixes. You can do this by downloading the update from the Downloads and Updates page. 

Here's how to proceed: 

1. Visit this link: Downloads & Updates.
2. From the Select Country dropdown menu choose your region.
3. Select your desktop product on the Select Product dropdown menu.
4. On the Select Version option, pick the year of the said version.
5. Click the Search button.
6. In the Here's your product window, hit the Get the latest updates link to install the update. 
   
    

I've added this helpful resource guide you can visit to lo learn more about installation issues or errors and how to resolve them: Fix QuickBooks Desktop Update Errors

Remember, keeping your software updated is key to avoiding future problems and ensuring smooth functionality, don. I'm still ready to assist you if you need further assistance, feel free to share them in the comments section below.