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Windows 8.1 application compatibility

Find tools and step-by-step guides to help you discover applications, assess compatibility with the Windows 8.1 operating system, and address compatibility issues prior to deployment.

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News and highlights

Internet Explorer 11 virtual machines now available on modern.IE

New virtual machines for Internet Explorer 11 for Windows 7 and Internet Explorer 11 on Windows 8.1 are now available on modern.IE to help you test Internet Explorer across platforms (Windows, Linux, and Mac) and versions.

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Learn about common compatibility challenges

Discover applications and assess compatibility

Mitigate or fix compatibility issues

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Troubleshoot an issue

Not an IT professional? Troubleshoot Windows 8.1 compatibility issues at Microsoft Answers.