How long does take Safe Boot?

I have a new iMac of retina 5K with 16 GB of RAM and a 3 TB hard drive installed.  I was right to try to boot mode safe this morning.  Six hours later, I abandoned the idea and rebooted normally.

The long wait due to the capacity of the HARD drive?  It is about four times greater than on my old mid-2007 24 "iMac.

Start safe mode is slow and it depends on how many files should be checked and/or repaired. My boot drive is only 1 TB, but Safe Mode generally takes about 3 to 4 times longer than normal, even if there is nothing particularly wrong.

Tags: Mac OS & System Software

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