loading bar

First time asking for Mac OS help. Today i got a weird loading bar on my screen. This is actually the second time it happened. The first time my Macbook automatically shut down when the loading bar finished. Today it didnt though. I took a quick video on my phone when it happened and attached it...

Hello all, Was wondering if anyone was aware what the purpose/meaning of the bouncing loading symbol showing in my status bar is? I don't recall ever seeing it before today, and I was not able to find it referenced on Apple's "Status icons and symbols on your iPhone" page. Still screenshot and...

My 27" late 2009 iMac froze the other day. Upon restarting it hangs at around 60-80% loading bar on the apple logo start screen. I managed to login into recovery mode disk utility and duplicate my drive to recover data. I ran first aid and no errors showed up. Was still unable to access so I...

I was recently turning on my old iphone 4 and it randomly shut off.. stayed on the little loading circle for about 5 minutes until i force shut it off... then when i went back to turn it on it had the apple logo with a loading bar underneath? I force shut it off again before the bar finished...

I brang out my old iphone 4s from middle school to transfer some files out from it, and stuff...connected to the internet and went about using it, i was using imessage to send things from that phone to another iphone. Back then when i got it, it was a refurbished phone and throughout the time i...

When I turn in my desktop it shows a loading bar. After it is filled about 1/10 ut shuts down. I had a similar problem last summer, were it overheated and had to had the hard drive replaced. When I go into recovery mode my "new" hard drive labeled super drive is greyed out for fixing and that...