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#MAC HIGH SIERRA USB EXTERNAL MONITOR NOT WORKING HOW TO#
#MAC HIGH SIERRA USB EXTERNAL MONITOR NOT WORKING FOR MAC#
#MAC HIGH SIERRA USB EXTERNAL MONITOR NOT WORKING PRO#
#MAC HIGH SIERRA USB EXTERNAL MONITOR NOT WORKING SOFTWARE#
#MAC HIGH SIERRA USB EXTERNAL MONITOR NOT WORKING PLUS#

Immediately press and hold the Shift key, and then release the Shift key when you see the progress indicator. Restart your Mac (some Mac computers play a startup sound). In this case, you can try to reboot your Mac in Safe Mode, which only runs essential macOS items.

#MAC HIGH SIERRA USB EXTERNAL MONITOR NOT WORKING SOFTWARE#

Those incompatible programs could be the USB security app, encryption program, or any antivirus software that you installed recently. Boot your Mac in Safe ModeĬhances are that some programs are stopping your external hard drive being loaded on Mac. But in most cases, you need to ask Apple's developer for help from their official site. Moreover, some Mac users said that the external hard drive can't be detected after installing macOS 12 Monterey. You can send it to a local repair center. If it can show up and work on your Mac, it indicates the external hard drive that’s not showing up on Mac is already damaged. So if necessary, you can ask help from specialists to open the external hard drive case and have a check.Ĭonnect another external hard drive to your MacBook, Mac mini, or so. Sometimes, the external drive is not showing up due to a problematic SATA connection. You can try to connect the external hard drive to another Mac USB port.īesides, check the USB port on the hard drive enclosure case. So, the external hard drive like a Seagate hard drive is not recognized by Mac. Maybe the USB port on your Mac is damaged. You can try to change a compatile cable and replug your external hard drive. The broken USB cable will block the external drive from establishing connections with your Mac.

#MAC HIGH SIERRA USB EXTERNAL MONITOR NOT WORKING FOR MAC#

Though an authentic USB Type C adapter is better, it lesses problem if you connect the Thunderbolt portable hard drive for Mac directly to your Mac. Then, make sure the USB hub and USB-C adapter work if your Mac uses Thunderbolt 3 port. External hard drives can't work if there is no enough power in the USB port.

#MAC HIGH SIERRA USB EXTERNAL MONITOR NOT WORKING PRO#

If you are working on MacBook, MacBook Air, and MacBook Pro models, two things to notice.įirst, make sure your Mac is not in a low power mode. For portable USB external hard drives, make sure the USB port is not wobbly, dusty, loose, or deformed. If the USB port won't work and can't supply with enough power, you can try another USB port.

#MAC HIGH SIERRA USB EXTERNAL MONITOR NOT WORKING PLUS#

For Desktop external hard drives like Seagate Backup plus and WD Elements Desktop, make sure the external hard drive is externally connected to a power socket.

You can do these things to check the power supply. So, if the external hard drive is lack of power, it won't show up on Mac. Ensure the drive cable has sufficient powerĮxternal hard drive requires electricity to light up, spin, and transfer data. Then, restart your Mac and slowly replug the external drive into your Mac to check if it shows up in your Finder this time. You can unplug the external drive and wait a moment. The temporary bug or slow reaction of the operating system can prevent the external drive from being detected by your Mac. Perhaps, there are no problems with the USB cables and ports. Restart Mac and replug the external drive in slowly So, if Mac not seeing your external hard drive, check if the external hard drive is properly connected by the following steps.ġ.

#MAC HIGH SIERRA USB EXTERNAL MONITOR NOT WORKING HOW TO#

It includes why and how to make the external hard drive recognized by macOS again. It's a definite guide to fix the Mac not recognizing external hard drive issue. Mac Doesn't Recognize External Hard Drive? Check This Definite Guide! Or, you can watch this video to fix the external HDD/SSD that isn't showing up on your Mac. You can follow our step-by-step guide to find and access the external hard drive on your Mac. But sometimes, it is due to your hidden settings.ĭon't know where to start? We are here to help. Sometimes, an hard drives not working or showing up on your Mac because it's not recognized by the system. FAQs about external hard drive not showing up on MacĬan't see external hard drive showing up on Mac, what to do? Why is the external hard drive not showing up on Mac? Guide to fix external hard dive not showing up on Mac Then, the external hard drive will show up on your Mac again. Take it easy and follow our guide to find out the reasons and check the connections, macOS settings, and the external hard drive. But this time, the connected external hard drive isn't showing up on Mac, even on your newly installed macOS 12 Monterey. Usually, when you connect an external hard drive to your Mac, it will show up on the desktop or at least in Finder.