The Problem: Blue or Gray Screen on Startup

When you turn on your PC and get a dark or blue screen (or it stalls out at the Apple logo) that never stacks OS X, it's a really decent aim for concern. This can occur for various reasons, so it's a standout amongst the most disappointing things that can happen to a Mac, and investigating it is no simple undertaking. In this way, how about we separate it into a couple of steps you can take to make sense of what's happening. We offer the best technical support services for Apple Mac by certified technicians, Mac Support Phone Number 1-844-296-4279 Mac tech support a 24-Hour Apple customer service contact number in USA, Canada.

Stage One: Disconnect All Peripherals

One of the primary driver of a dim or blue screen on startup is incongruent equipment associated with the machine. This may be a printer, an outside hard drive, or even a USB center. Along these lines, disengage everything with the exception of the mouse and console, and restart your PC.

In the event that your Mac begins along these lines, at that point it's an issue with one of those peripherals. You need to experimentation your way through to make sense of which one, so interface them once again into your PC one by one, and restart. On the off chance that one of them makes your PC hold tight the dim screen once more, you've discovered your issue.

On the off chance that you make sense of the dangerous fringe, it's an ideal opportunity to complete a little research. Make a beeline for the producer's site and check whether others are revealing a similar issue. You may have the capacity to settle it with a product refresh or a firmware refresh to the gadget.

In the event that no gadgets are causing issues, and your Mac still won't boot, at that point it's an ideal opportunity to burrow somewhat more profound.

Stage Two: Perform a Safe Boot

Safe boot influences your Mac to boot up with the base measure of drivers expected to influence it to work, and it checks your hard circle all the while (it may take somewhat longer to boot up). Do this, start up your PC while holding down the Shift key until the point when the Apple logo passes. In the event that your Mac begins up with the protected boot, simply ahead and restart the PC again and check whether it boots up regularly (as odd as it sounds this fixes the issue an amazing measure of the time). If not, it's an ideal opportunity to give the hard drive a more intensive look.

StageThree: Run Disk Utility

On the off chance that regardless you can't boot up OS X regularly, it's an ideal opportunity to run Disk Utility and look at your hard drive:

1.       Boot up your PC while holding down Command+R (in case you're running Snow Leopard or prior, discover your OS establishment circle, place it in the drive, and reboot your PC holding down C). This will boot you into a symptomatic mode.

2.       Select the Disk Utility Option.

3.       Select your hard drive, and snap "Confirm." Wait for Disk Utility to get done with running.

4.       In the event that issues fly up, click "Repair Disk."

5.       In the case of nothing flies up, click "Repair Permissions" and sit tight for Disk Utility to filter your hard drive once more.

6.       In the event that Disk Utility finds and repairs a few issues, simply ahead and reboot.

In a ton of cases, running Disk Utility will get issues with startup issues. In some cases a solitary record with the wrong consents can make the entire framework crumple, or if something's not in the ideal place it won't boot. On the off chance that this doesn't work, you have significantly more issues to investigate.