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In some cases, when you login into Microsoft Teams in Windows 7. You got the blank screen error or script error window.
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1. To fix it, let download the security updates from below link, then install in order. First, install the KB2882822.
Alternative download links from Microsoft Download Center:
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2. Restart your computer after the KB2882822 has been installed. If you don’t restart your computer, you cannot install the next security update.
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3. Now, install Internet Explorer 11.
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4. Restart your computer again to take changes go into effect.
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Finally, open Microsoft Teams app then login into your Microsoft account to verify it works.
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