If you use Microsoft Teams regularly, you have probably seen your fair share of sign-in errors. These issues often appear suddenly and prevent you from accessing the desktop app altogether. While the error codes vary, the result is usually the same: you cannot sign in to Teams on your PC. Fortunately, most of these problems are easy to fix with a few straightforward troubleshooting steps.
Table of Contents
What Is Microsoft Teams Error Code 9hehw?
Error code 9hehw usually appears alongside a message stating that your computer’s Trusted Platform Module has malfunctioned. The TPM is a security component in Windows that helps protect credentials and encryption keys. When Teams cannot correctly access stored authentication data, it may block sign-in entirely.
In many cases, this error is related to corrupted application files or cached data rather than a true hardware failure. That is why reinstalling Teams alone is often not enough to fix the issue.
How to Fix Microsoft Teams Error Code 9hehw on Windows
Uninstall Microsoft Teams and Clear the Cache
The fastest and most effective solution is to completely reset Microsoft Teams by uninstalling the app and manually clearing its cache folders. These cache files are not removed during a normal uninstall, and leaving them in place often causes the error to return.
Follow these steps carefully.
- Uninstall Microsoft Teams from your computer using Apps and Features in Windows Settings.
- Press Windows key + R to open the Run dialog.
- Copy and paste the following path and press Enter:
%appdata%\Microsoft\teams\Cache
- In the File Explorer window that opens, press Ctrl + A to select all files, then press Delete.
Repeat this process for each of the following locations:
%appdata%\Microsoft\teams\application cache\cache
%appdata%\Microsoft\teams\blob_storage
%appdata%\Microsoft\teams\databases
%appdata%\Microsoft\teams\GPUcache
%appdata%\Microsoft\teams\IndexedDB
%appdata%\Microsoft\teams\Local Storage
%appdata%\Microsoft\teams\tmp
- Once all folders have been cleared, restart your computer.
Reinstall Microsoft Teams
After restarting, download and install the latest version of Microsoft Teams from the official Microsoft website. When the installation is complete, open the app and sign in as normal. In most cases, the error will be fully resolved.
This same process can also fix many other Microsoft Teams sign-in errors related to cached data or corrupted local files.
Can You Not Sign In Using the Web Version?
If you experience sign-in issues in the web version of Microsoft Teams, such as being stuck in a repeated email address loop, the problem is usually account or browser related rather than TPM related. In that case, follow a dedicated guide on fixing Teams sign-in email issues to regain access.
By fully resetting the Teams app and clearing all cached data, you can usually resolve error code 9hehw quickly and get back to work without further interruptions.
