Before you bypass the iCloud activation lock, you need to jailbreak the iOS device. Because there is no jailbreak tool for Windows system, you can follow this tutorial to create a jailbreak environment on a Windows computer and then jailbreak your iOS device.
Here is a need-to-do list before you jailbreak the iOS device on Windows.
Click the “SELECT” button to find the downloaded checkn1x ISO file. Leave the other options as defaults, and then click “START”.
Then a warning message pops up, select the "Write in DD Image Mode" option, and then click OK.
It takes 2 or 3 minutes to burn checkn1x ISO file to USB flash drive.
When the burning process is completed, click the "CLOSE" button.
Note: When the checkN1x ISO file is burned, please unplug and reinsert the USB flash driver into your computer in case the system doesn’t recognize it.
Note: For the majority of computers, the Boot Options of keyboard shortcut is F12. If F12 doesn't work, you need to search for the correct shortcut.
In the startup window, select the USB flash drive that just burned the checkn1x ISO file.
After the checkn1x tool is initiated, connect your iOS device to the computer, and you will see a connected reminder in the program. The select the Start option from arrow keys the on your keyboard and press the enter key.
To jailbreak your iOS device, CheckN1x requires your device be in DFU mode. Select "Next" and the program will direct you to DFU mode.
Check the "Next" option and Checkn1x will automatically put your iOS device into recovery mode first.
Select the "Start" option, and then follow the instructions on Checkn1x to put your iOS device into DFU mode.
After your device enters DFU mode successfully, Checkn1x will automatically jailbreak your device. When the jailbreaking process is completed, select "Done" and unplug the USB flash drive.
Tip #1: If the jailbreaking process gets stuck:
Tip #2: If jailbreak failed:
Re-plug your device into the USB port on the back of your computer host and try again.
After your device is jailbroken successfully, restart the computer, and your computer will automatically enter the Windows operating system. Please use Tenorshare 4MeKey to remove the activation lock of the iOS device. Here comes the Tenorshare 4MeKey Remove iCloud Activation Lock Tutorial.