Hello there, @Bokihein. Thanks for the prompt reply and, I appreciate the screenshot you've provide for the error message you've received when updating your QuickBooks Desktop file. Allow me to chime in and share insights about the error message and how you can fix it.

Error 1328 in QuickBooks Desktop typically occurs when there is an issue with the software update or installation process. The error message you provided indicates that there is a problem updating the file "PTC6A5.tmp" in the "C:\Config.Msi" directory. This issue may be caused by various factors, including corrupted installation files, file permissions, or conflicts with other software. To fix this, here's how:

Before proceeding with any troubleshooting steps, it's a good idea to restart your computer. Sometimes, a simple restart can resolve temporary issues.

Then, let's download and install the QuickBooks Tool Hub. Here's how:

1. Close QuickBooks.
2. Download the QuickBooks Tool Hub's most recent version (1.6.0.3). Save the document in a location that's easy to find (like your Downloads folder or your Windows desktop). If you've installed Tool Hub before and can't find which version you have, just click on the Home tab and the version will be displayed at the bottom.
3. Open the file you downloaded (QuickBooksToolHub.exe).
4. Follow the on-screen steps to install.
5. When done installing, double-click on the icon on your Windows desktop to open. If you can't find the icon, search for QuickBooks Too Hub on your Windows.

The hub is a launchpad for the tools you’ll use to fix your issue. Each tab has a set of tools to help with different types of problems. For more details, see this article: Fix common problems and errors with the QuickBooks Desktop Tool Hub. This article pertains to the United States but operates similarly in your QuickBooks Desktop (QBDT) file.

Additionally, I'll be sharing these resources that will guide you in connecting your email and add Outlook as an option to send an email if it's missing in QuickBooks Desktop. Please be aware that this is a US-specific article, but it is still applicable and functional in your company file:

• Connect your email to QuickBooks Desktop
• Fix Outlook is missing in send forms preferences

If you require further assistance with your QuickBooks Desktop file, please don't hesitate to let me know by leaving a comment below. I'm here to assist. Stay safe.