Mac

Ask Mac Questions and Get Answers from Experts ASAP

Ask a Computer Expert,
Get an Answer ASAP!

I have an Apple Mac Pro, I just updated the Sierra hardware,

Customer Question
I have an Apple...

I have an Apple Mac Pro, I just updated the Sierra hardware , and now I am getting a blank black screen with a flashing white folder icon with a question mark .....what is going on?

Technician's Assistant: Have you tried a PRAM reset on your Mac Pro (rebooting and holding down Command, Option, P, and R)? Or rebooting in Recovery Mode (holding down Command and R)?

No I will try this now thanks

Technician's Assistant: Anything else you want the Mac Expert to know before I connect you?

No thanks

Submitted: 4 months ago.Category: Mac
Show More
Show Less
Ask Your Own Mac Question
Answered in 5 minutes by:
11/28/2017
Mac Support Specialist: Richard, Apple Software Engineer replied 4 months ago
Richard
Richard, Apple Software Engineer
Category: Mac
Satisfied Customers: 44,570
Experience: IT Engineer for over 15 years
Verified

Thank you for your question. My name is ***** ***** I look forward to assisting you.

Shut down your Mac.
Find Command (⌘), Option, P, and R on your keyboard.
Turn on your Mac.
Press and hold the Command-Option-P-R keys immediately after you hear the startup sound.
Hold these keys until the computer restarts and you hear the startup sound for a second time.
Release the keys.

Let me know how it then operates please

Ask Your Own Mac Question
Customer reply replied 4 months ago
How long should be holding the keys down for until the second start up sound occurs? I’ve done this and the same white folder icon appears
Mac Support Specialist: Richard, Apple Software Engineer replied 4 months ago

It will normally occur within a few seconds

Ask Your Own Mac Question
Customer reply replied 4 months ago
Ok this never happened
Customer reply replied 4 months ago
I’ve tried this again and nothing happens
Mac Support Specialist: Richard, Apple Software Engineer replied 4 months ago

Thank you

Power off the mac

Then start the Mac and hold down the Command and R keys at startup.

Hold these keys until the Apple logo appears. After your computer finishes starting up, you should see a desktop with an OS X menu bar and an OS X Utilities window

choose Disk Utility from the Utilities window, or from the Installer menu if you're started from an installation disc.

Click the First Aid tab.

Click the disclosure triangle to the left of the hard drive icon to display the names of your hard disk volumes and partitions.

Select your Startup Disk (usually named "Macintosh HD").

Click Repair. Disk Utility checks and repairs the disk.

Let this complete and when it has, tell me if you still have the problem please.

Ask Your Own Mac Question
Customer reply replied 4 months ago
Ok when choosing start up disk, there is nothing to select.
There is a restart button , and if I select this it tells me that I can’t change the start up disk to the selected disk
Customer reply replied 4 months ago
I’ve backed out of all these options and have restarted
Mac Support Specialist: Richard, Apple Software Engineer replied 4 months ago

Look at the top please you will see first aid there to click on

Ask Your Own Mac Question
Customer reply replied 4 months ago
Same white flashing folder appears
Mac Support Specialist: Richard, Apple Software Engineer replied 4 months ago

yes, but you have not done the instructions yet..

Look at the top please you will see first aid there to click on when doing my instructions

Ask Your Own Mac Question
Customer reply replied 4 months ago
Hi
I have OS X base system to choose from and this lets me run repairs.
I can see Macintosh HD , but when I choose this I am unable to click first aid
Mac Support Specialist: Richard, Apple Software Engineer replied 4 months ago

ok, choose OS X base system and run a repair then restart

Ask Your Own Mac Question
Customer reply replied 4 months ago
Ok so I’ve restarted, and the flashing folder icon still appears
Mac Support Specialist: Richard, Apple Software Engineer replied 4 months ago

ok, then we need to attempt a reinstall as it cannot access the hard drive, though the face we could not repair the Macintosh HD is a concern.

But do the following

Power off the mac

Then start the Mac and hold down the Command and R keys at startup.

Hold these keys until the Apple logo appears. After your computer finishes starting up, you should see a desktop with an OS X menu bar and an OS X Utilities window

Then choose to reinstall the OSX and tell me how it then operates, please.

Ask Your Own Mac Question
Mac Support Specialist: Richard, Apple Software Engineer replied 4 months ago

Thank you

Ask Your Own Mac Question
Customer reply replied 4 months ago
Thanks for your help, I will try this tomorrow.
Mac Support Specialist: Richard, Apple Software Engineer replied 4 months ago

You are welcome

I will mark this question to remain open so If you have continued problems, or would like any additional information or assistance, please do not hesitate to let me know.

And please take a second to rate my service for now by clicking one of the stars at the top of the screen then submit

Thank you

Ask Your Own Mac Question
Was this answer helpful?
Ask Richard Your Own Question
Richard
Richard
Richard, Apple Software Engineer
Category: Mac
Satisfied Customers: 44,570
44,570 Satisfied Customers
Experience: IT Engineer for over 15 years

Richard is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

Hi John, Thank you for your expertise and, more important, for your kindness because they make me, almost, look forward to my next computer problem. After the next problem comes, I'll be delighted to correspond again with you. I'm told that I excel at programing. But system administration has never been one of my talents. So it's great to have an expert to rely on when the computer decides to stump me. God bless, Bill

Bill M.Schenectady, New York

The Expert answered my Mac question and was patient. He answered in a thorough and timely manner, keeping the response on a level that could understand. Thank you!

FrankCanada

My Expert answered my question promptly and he resolved the issue totally. This is a great service. I am so glad I found it I will definitely use the service again if needed.

One Happy CustomerNew York

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

< Previous | Next >

Meet the Experts:

Mike

Mike

Mac Medic

8,555 satisfied customers

Over 20 years IT experience with Apple computers in publishing, marketing and design.

Daniel

Daniel

Mac Genius

4,711 satisfied customers

Apple certified on desktop and portable, help desk qualified. Have owned and used Macs since 1989.

Vinod Menon

Vinod Menon

Support Specialist

2,394 satisfied customers

worked as a Tech support Associate for Apple products

John T. F.

John T. F.

Mac Druid

1,994 satisfied customers

20+ years in the computer/Mac industry

David

David

Mac Support Specialist

1,507 satisfied customers

BSc H.Dip Apple Certified Professional

Claws224

Claws224

IEEE Datacommunication Engineer

965 satisfied customers

IEEE, Microsoft

Mac Tech

Mac Tech

Apple Specialist

888 satisfied customers

7 + Years Supporting Apple Products

< Previous | Next >

Related Mac Questions
It is may iPhone 6. About 5 minutes ago it started not
It is may iPhone 6. About 5 minutes ago it started not letting me add events to my calendar. I did both a reboot and a hard reboot, and nothing changed. … read more
Vinod Menon
Vinod Menon
Support Specialist
Master's Degree
2,394 satisfied customers
I just got an 8 and I can't remember my apple ID password
I just got an 8 and I can't remember my apple ID password for***@******.*** … read more
Jon
Jon
Bachelors Degree
581 satisfied customers
I have an iPhone 6= and sn iPad but sms messages aren't
Hi I have an iPhone 6= and sn iPad but sms messages aren't sounding notification. Help. … read more
Jon
Jon
Bachelors Degree
581 satisfied customers
I have had 2 charges to my Apple Store iTunes account in the
I have had 2 charges to my Apple Store iTunes account in the last 2 days. These are not authorized. How do I put a stop to thi/s … read more
Jon
Jon
Bachelors Degree
581 satisfied customers
I am trying to send an email to a dozen addresses, but the
I am trying to send an email to a dozen addresses, but the attachment is too large, and the email gets sent without the 4 minute video attachment. And now I seem to be unable to open the 1080.mov whic… read more
Richard
Richard
Apple Software Engineer
44,570 satisfied customers
Someone emailed me a 30 minute video and when I click on the
Someone emailed me a 30 minute video and when I click on the link I received the following messages "Video is too long for playback" and"Playback is supported for videos up to 20 minutes length" so I … read more
Richard
Richard
Apple Software Engineer
44,570 satisfied customers
I went online to buy some music was told my account was
i went online to buy some music was told my account was disabled? also got email re my subcription is due to be reknewd i wont be able to use if my account is disabled … read more
Richard
Richard
Apple Software Engineer
44,570 satisfied customers
My Facebook account is gone on iPad Air but it works on
My Facebook account is gone on iPad Air but it works on iPhone. … read more
Richard
Richard
Apple Software Engineer
44,570 satisfied customers
My Apple ID account has been used to purchase an app that I
My Apple ID account has been used to purchase an app that I didn't make nor know anyone that has it. Today I got a message that said my account was trying to accessed near Seattle Washington. I'm in N… read more
David L.
David L.
Bachelor\u0027s Degree
6 satisfied customers
Well I broke my phone got it fixed then it says I need my
Well I broke my phone got it fixed then it says I need my apple Id and I did it and it keeps saying its wrong … read more
David L.
David L.
Bachelor\u0027s Degree
6 satisfied customers
My MacBook Pro has essentially frozen down quite suddenly. I
My MacBook Pro has essentially frozen down quite suddenly. I am unable to open any Applucations. Did I suddenly get a virus? Ted … read more
David L.
David L.
Bachelor\u0027s Degree
6 satisfied customers
It said I have Pegasus virus, iPhone se, 35 minuets it gave
35 minuets it gave me a number to call I did. Guy connected theough zoom cloud meeting. He said he was Apple tech support. … read more
Viet - Computer Tech
Viet - Computer Tech
Computer Technican
Bachelor\u0027s Degree
955 satisfied customers
It's my iphone. I don't know I have a new phone iPhone 8, is
I don't know I have a new phone iPhone 8, is it sos? … read more
Jon
Jon
Bachelors Degree
581 satisfied customers
My husband has forgotten his pin for his phone how can we
Hi. My husband has forgotten his pin for his phone how can we get into his phone his number is(###) ###-####… read more
Richard
Richard
Apple Software Engineer
44,570 satisfied customers
Mail can not connect to Account "att". Where do you look for
where do you look for that information, I just had an update. … read more
Richard
Richard
Apple Software Engineer
44,570 satisfied customers
I am a fairly intelligent 76 yr. old woman. I would love to
I am a fairly intelligent 76 yr. old woman. I would love to learn how to use ebooks. I see people reading them on buses on various types of devices. Ebooks seem to be cheaper. Could you give me an ink… read more
Richard
Richard
Apple Software Engineer
44,570 satisfied customers
I hope you can. I have a iPhone 6 and i had it turned into a
i have a iPhone 6 and i had it turned into a pay as you go phone but i cant remember my apple id … read more
Richard
Richard
Apple Software Engineer
44,570 satisfied customers
I bought a iphone x and I put in a pass code that I can't
I bought a iphone x and I put in a pass code that I can't remember … read more
Richard
Richard
Apple Software Engineer
44,570 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x