zisqo Posted March 25, 2020 Share Posted March 25, 2020 (edited) prompt the message "You can't change the startupdisk to the selected disk. (the nvram tool was unable to set a preference.)" is displayed starting from Catalina 10.14.4 with OpenCore 0.5.7, but i can specify the startup disk. Can you see why this error is occurring? But didn't happened in CT10.14.3 (it just few about the 1day ago) maybe it's just because of the New OS buggy? (I just guess up) MB : ASUS X299 TUF MK1 (this motherboard are not occur any errors in OC ever) Edited March 25, 2020 by zisqo Link to comment Share on other sites More sharing options...
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