Microsoft Teams Error Code 80080300 [Fix]

This post covers different workarounds to fix Microsoft Teams Error code 80080300. Microsoft Teams is a communication platform developed by Microsoft. It is a cloud-based app that integrates well with the typical office application and is available to Microsoft 365 commercial customers. However, like any other cloud-based application, it also has a long list of errors. And in this post, we will talk about part one of many such errors – Microsoft Teams Error code 80080300. Continue with this guide to find out how to eliminate this error code.

What causes Microsoft Teams Error code 80080300?

The Microsoft Teams error code 80080300 can result from various causes. The error code appears when you try to log in or start Teams and is usually caused by a corrupted Teams cache. But there can be other reasons too. Now that you have some prior knowledge about the error code mentioned, let’s check out how to get rid of it.

Fix Microsoft Teams Error Code 80080300

Below is a list of all the effective solutions you can try to fix Microsoft Teams Error code 80080300.

Restart Microsoft Teams
Run Troubleshoot compatibility
Change Microsoft Teams compatibility mode
Delete Microsoft Teams cache folder
Download the latest Microsoft Teams update
Reinstall Microsoft Teams

Now, let’s take a look at all these solutions in detail.

1] Restart Microsoft Teams

The first thing you should do when you come across the error message is restart Microsoft Teams. The probability is high; the error is caused by a temporary glitch. And the best way to eliminate such glitches is to restart the program. So, restart Microsoft Teams and check if it makes any difference. If not, try the following technical workarounds.

2] Run Troubleshoot compatibility

You can run a compatibility troubleshoot to resolve different issues surrounding an application. Here’s how to run troubleshoot compatibility with Microsoft Teams.

Right-click on the Microsoft Teams shortcut icon and choose to Show more options.
Click on Troubleshoot compatibility.
The Program Compatibility Troubleshooter will look for any issue revolving around the application.

Once the process is complete, launch Microsoft Teams and check if the problem continues.

See: Fix Microsoft Teams Login issues: We couldn’t sign you in

3] Change Microsoft Teams compatibility mode

The next thing you can try is changing Microsoft Teams’ compatibility mode. To do so, follow the steps below.

Right-click on the Microsoft Teams shortcut icon, and choose Open file location.
Right-click the Microsoft Teams .exe file and click Show more options.
Click on the Properties option.
Switch to the Compatibility tab.
Checkmark Run this program in compatibility mode for option.
Click on the dropdown icon and choose Windows 8.
Tap on Apply > OK.

That’s it. Launch Microsoft Teams and check whether the problem is fixed.

4] Delete Microsoft Teams cache folder

All the programs, including Microsoft Teams, store cache data to offer a faster user experience. But if these data get corrupted for some reason, the associated application will face different problems. As a solution, you will have to delete the application cache data. So, here’s how it’s done.

Press the Windows + R shortcut key to open the Run dialogue box.
Copy-paste the below command and press enter.
Right-click on the Cache folder and choose the delete icon.
Now, restart your system, and open Microsoft Teams.

Check if the problem persists. If yes, try the next solution.

5] Download the latest Microsoft Teams update

If you haven’t updated the Microsoft Teams application for a long time, you will likely encounter the issue mentioned. Download the latest app update as the solution to the problem. Here are the steps you need to follow.

Launch Microsoft Teams on the system.
Tap on the profile icon present at the top right corner, and from the context menu, choose to Check for updates.
Now, Microsoft Teams will look for any available update.
If found, it will begin the downloading process in the background.

6] Reinstall Microsoft Teams

If you are still experiencing the problem, the last thing you can try is reinstalling the program. As it turns out, there may be a problem in the solution causing the issue mentioned. Thus, reinstall Microsoft Teams to fix the problem.

Read: Video sharing is disabled by the administrator in Microsoft Teams

Do you need a Microsoft account to use Teams?

Yes, you need a Microsoft account to enjoy Microsoft Teams. If you’re using any Microsoft services like Skype, OneDrive or Xbox Live, you must already have a Microsoft account. But if you are new to the platform, it’s straightforward to create a new Microsoft account.

Why does Teams just say connecting?

If Microsoft Teams is stuck at the connecting screen, it indicates an issue with your network. To fix the problem, you can power cycle the router. Additionally, you can restart your system, then launch Microsoft Teams.