DeferredInstall folder after recovery

My HDD crashed.

Erased/re-formatted.

Tried to do a complete system recovery but could not due to HDD space issue.

Fresh OS 10.9.5 using Recovery.

Copied all except the "Other files and folders" with Setup Assistant from a Time Machine backup.

Babysat it for an hour.

Let it run overnight.

In morning the computer restarted because of a problem.

After starting up, everything seems to have been copied.

Then I noticed this folder:

HDD/System/DeferredInstall

with a red circle and slash

It is time stamped last night.

What should I do?

Ignore it?

Delete it?

Do something else?