Remove both your USB stick and the OS X install drive.Once it says it’s finished (basically when it says X bytes copied in Y seconds), hold down the power button until your machine switches off.Type the following command without quotes: “dd if=/dev/rdisk1 of=/dev/rdisk0 bs=4m count=512″.Once the install wizard appears, click Utilities on the bar at the top, and then Terminal.Once the language selection screen appears, pick the appropriate option and click next.Hold the “C” key down and press the power button, you can let go of the “C” key once the Apple logo appears.Insert both this USB stick and the OS X install drive into your Macbook Air while it’s switched off.Burn the image to a USB stick using dd (check the wiki if you need help with this, same as Flow/Vanilla instructions).

Extract the archive using your decompression tool of choice (The Unarchiver for Mac works great).

FINAL WARNING: You’re going to destroy all of your data by following this guide! I am not responsible for any data loss, make sure your backup any data first!.

The following instructions are repeated from, who got this working, here’s the instructions: If you’re brave enough to give this a try, you’ll need a compatible MacBook Air, a 2GB+ USB stick, and the Mac OS X USB Installer key that comes with the MacBook Air. We haven’t tested this ourselves and you’ll want to be sure you backup Mac OS X before proceeding because it’ll be overwritten. The major caveat? You lose OS X, so don’t expect to dual boot here. In the meantime, you may drop in your queries, if any, in the comments section below.All hardware works with the exception of Bluetooth, but all the brightness, sound, trackpad, WiFi, and it is said to install on both the MacBook Air 11″ and 13″ models, and possibly even nVidia based MacBook and MacBook Pro’s. As and when any of these two things take place, we will update this accordingly. As far as the official stance on this issue is concerned, Google is yet to acknowledge yet, let alone release a fix. So these were the two different methods to fix the issue of being unable to upload files via Chrome in macOS.

Now launch the browser and truly upload files, the issue would have been rectified.

Finally, add Google Chrome to this list.

Then select Full Disk Access, click +, and select Applications.

After that, click on the Lock icon at the bottom left.

Now launch Chrome on your macOS and check if the issue of being unable to upload files has been fixed or not.

Then scroll to Chrome and uncheck the Downloads folder permission.After that, select Files and Folders from the left menu bar.Then select Security & Privacy and click on Privacy.Click on the Apple menu on your Mac and select System Preferences.

How to download chrome on macbook air