marvelloard Posted September 30, 2017 Share Posted September 30, 2017 Since upgrading to HS my exFat formatted internal HDD isn't being recognised by macOS. At boot the system ask if the drive should be initialised. In Windows 8.1 however the drive works fine, and with Sierra I didn't have any problems with this drive too. How is this possible? My USB flash drive formatted with exFat works fine o.O Link to comment Share on other sites More sharing options...
snifferdog Posted September 30, 2017 Share Posted September 30, 2017 See: http://www.insanelymac.com/forum/topic/327781-the-disk-you-inserted-was-not-readable-by-this-computer-high-sierra-only/ 1 Link to comment Share on other sites More sharing options...
marvelloard Posted September 30, 2017 Author Share Posted September 30, 2017 Thank you a lot, will try tomorrow. What the hell is going on with HS? Never had so many problems with a new version! Even on my real MacBook Air I can't format my USB drive. Link to comment Share on other sites More sharing options...
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