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Open the Disk Management tool by right-clicking This PC -> Manage -> Disk Management. Just press and hold the power button on your Mac until it turns off. Connect your external hard drive to your Windows 10 PC. If you're selling, giving away, or trading-in your Mac and want to leave it in an out-of-box state, don't use the setup assistant or your previously connected Bluetooth devices, if any. After restart, a setup assistant guides you through the setup process, as if you're setting up your Mac for the first time.After joining a network, your Mac activates.
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To select a Wi-Fi network, use the Wi-Fi menu in the upper-right corner of the screen.
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When reconnecting to a Bluetooth keyboard, you're asked to choose a language. If the accessory doesn't connect within 30 seconds, turn the accessory off and back on. If it needs to reconnect to a Bluetooth accessory such as a keyboard or mouse, you might be asked to turn on the accessory.
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Natively, Windows PC do not even "see" APFS and HFS+ formatted partitions. Mac users upgrading to the Catalina need to convert their drives to APFS first. Features added to this new file management system include snapshots, crash reporting, space sharing, and cloning to name but a few. This new file system unleashes the full potential of SSD drives for faster storage, easy retrieval of files, and securing files. In the newest macOS 10.15 Catalina, however, things have changed and now the supported drive types are the Apple File System (APFS) drives. The HFS+ file system is supported by macOS High Sierra and previous releases of macOS and OS X. And more often than not, it results in a continuous and pestering headache more so when copying and transferring files. The problem is, this versatility brings forth incompatibility. Well, this is inevitable considering that we are living at the helm of the golden age of information- where different operating systems are an indispensable requisite. If my instincts are right, you are working or living in an environment that consists of both Windows and Mac computers.
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