For most users running Windows 8.1 Pro or Enterprise, the can be handled directly through the operating system without visiting external websites. This is the safest and most automated method.
In the Windows 8.1 era, Microsoft made a distinction between two types of language resources: windows 8.1 language pack download
If you find an ".exe" claiming to be a "Windows 8.1 language pack downloader," delete it immediately. These are nearly always adware or ransomware. For most users running Windows 8
Because Windows automatically adds the keyboard input for that language. Go back to Region and language → Select your original keyboard language → Options → Remove the new keyboard if unwanted. These are nearly always adware or ransomware
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How Microsoft’s shift to per-user language settings in Windows 8.1 reflected a broader move toward globalized, multi-user PC environments — yet the requirement for Pro/Enterprise editions for full language pack installation highlighted lingering segmentation in Microsoft’s licensing model.
If your PC is not connected to the internet, you may need a manual installer:
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