I can perform other installations with Choco but not MS-Teams. It fails with this error even though I did the installation in elevated mode. What can I do about it?
Problems with package installations are best handled by reaching out directly to the maintainer of the package. They are the ones who are best able to help with these sorts of problems.
You can reach out them via the package page:
And then click on the "Contact Maintainers' link.
For what it is worth, I just attempted the installation of this package on a local testing environment (which is the same as that used by the automatic package verifier that is ran on chocolatey.org) and the package installed without any problems.
Seems like this could be something local to your environment that is causing problems. As suggested in comments, it would be good to see the output log from the installation attempt.