Error installing micorsoft teams

Question

I am trying to install teams on a new windows 11 laptop

I am getting the error message below

"Unhandled exception: System.BadImageFormatException: Could not load file or assembly 'PresentationCore, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The file or directory is corrupted and unreadable. (Exception from HRESULT: 0x80070570)

File name: 'PresentationCore, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'

at Squirrel.Update.Program.executeCommandLine(String[] args)

at Squirrel.Update.Program.main(String[] args)"

Answer 1

Hi @Eoin McKenna,

Welcome to Q&A!

Based on the error message you shared, the file PresentationCore.dll is the one with invalid image.

To fix this issue, you could follow the suggestions as below:

1.Restart your computer firstly.

2.Check your recycle bin to see if the PresentationCore file is mistakenly deleted. If it does, please restore it. And attempt to install.

3.If the above suggestion doesn't work, please check if there is any notification for Windows update. If has, it is required to complete the update above all and then have a another attempt for the installation.

4.If the steps 3 has no luck as well, please Open an elevated command prompt and run the following commands in order to repair the corrupted file:

DISM.exe /Online /Cleanup-image /Restorehealth

sfc /scannow

Please note that do not close the Command Prompt window until the verification id 100% complete.

If this issue persists, please kindly share more details and information with us. 

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