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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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Windows for IT Pros Spotlight

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.


Learn About Common Compatibility Challenges


Discover Applications and Assess Compatibility


Mitigate or Fix Compatibility Issues


Troubleshoot an Issue

Not an IT professional? Troubleshoot Windows 8 compatibility issues at Microsoft Answers.