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Short for "Hotfix." This implies the version includes the latest security patches and updates up to the date it was uploaded. The Risks of Using Unofficial Windows Builds

Does your target hardware meet the official ? windows 11 x64 21h2 pro 3in1 oem esd multi7 ju hot

Usually represents the initials or moniker of the custom builder who slipstreamed the updates. Short for "Hotfix