Thursday, August 6, 2020 [Tweets] [Favorites]

Unsticking Stuck Preference Settings

Howard Oakley:

Preference Domains, one of the least understood parts of the whole system, are detailed here. In practice, this means there may be another Property List in ~/Library/Preferences/ByHost which is overriding that in ~/Library/Preferences. The property lists in that ByHost folder are named differently, such as com.apple.loginwindow.[UUID].plist. The UUID used corresponds to that of your Mac’s Hardware UUID, which can be found at the top level of System Information.

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If you have got a stuck preference setting, once you’ve ensured that it isn’t the result of incorrect permissions on that preference file, you need to discover the key name for that preference, whether it’s global or from an app-specific domain, then use defaults to look for an overriding setting with the -currentHost option. If you find that, use defaults -currentHost delete to remove that override, and your normal setting should start working again.

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