MiniBUU Posted January 15, 2009 Share Posted January 15, 2009 For some reason I keep getting the following error: System extension cannot be used.. The system extension "/S/L/E/ACPIBattery.kext" was installed improperly and cannot be used: Please try reinstalling it, or contact the product's vendor for an update. I tried reinstalling it but it comes up everytime. How do I fix this problem? Link to comment https://www.insanelymac.com/forum/topic/146979-system-extension-cannot-be-use/ Share on other sites More sharing options...
MacNutty Posted January 15, 2009 Share Posted January 15, 2009 For some reason I keep getting the following error: System extension cannot be used.. The system extension "/S/L/E/ACPIBattery.kext" was installed improperly and cannot be used: Please try reinstalling it, or contact the product's vendor for an update. I tried reinstalling it but it comes up everytime. How do I fix this problem? Try repairing disk permissions using Disk Utility. Link to comment https://www.insanelymac.com/forum/topic/146979-system-extension-cannot-be-use/#findComment-1041802 Share on other sites More sharing options...
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