![USB Flash Drive Don't Copy/Paste or Read/Write Mac, External USB Storage Not Working on MacBook iMac - YouTube USB Flash Drive Don't Copy/Paste or Read/Write Mac, External USB Storage Not Working on MacBook iMac - YouTube](https://i.ytimg.com/vi/d-GGurboCNY/maxresdefault.jpg)
USB Flash Drive Don't Copy/Paste or Read/Write Mac, External USB Storage Not Working on MacBook iMac - YouTube
![At a loss. Made Mac usb installer, got copy of El Capitan from Apple's website, tried reinstalling on my internal hard drive and this the message I get. What do I do At a loss. Made Mac usb installer, got copy of El Capitan from Apple's website, tried reinstalling on my internal hard drive and this the message I get. What do I do](https://preview.redd.it/at-a-loss-made-mac-usb-installer-got-copy-of-el-capitan-v0-20zpomj96ky91.jpg?auto=webp&s=ab92110af1751e97cd90cb6795a5016c5d6efcbe)
At a loss. Made Mac usb installer, got copy of El Capitan from Apple's website, tried reinstalling on my internal hard drive and this the message I get. What do I do
![Amazon.com: Cable Matters Plug & Play USB to Ethernet Adapter with PXE, MAC Address Clone Support (USB 3.0 to Gigabit Ethernet, Ethernet to USB, Ethernet Adapter for Laptop) Supporting 10/100/1000Mbps in Black : Amazon.com: Cable Matters Plug & Play USB to Ethernet Adapter with PXE, MAC Address Clone Support (USB 3.0 to Gigabit Ethernet, Ethernet to USB, Ethernet Adapter for Laptop) Supporting 10/100/1000Mbps in Black :](https://m.media-amazon.com/images/I/61JekYzIf+L.jpg)