Any thoughts on why an external Time Machine backup drive would suddenly being able to mount. It was working before I installed ONE, worked for a while but when I unplugged it to move my laptop when I plugged it back in it won’t mount. It powers up, the Mac can see it in the system report, but not in disk utility, finder, or Time Machine.
Now I have a 2nd MacBook where the TimeMachine external hard drive is no longer being recognized either. The only thing that is the same is AVOne is loaded on both.
I tried uninstalling AVOne but when I rebooted and plugged the drive in it crashed the boot up.
Thoughts
JK