Now we will show you how to Untether jailbreak iOS 5.1.1 on Windows. It is to a great extent similar to the Mac process except that you run Absinthe 2.0 as administrator and the self-extracting file
Step 1: Download Absinthe 2.0 for Windows.
Step 2: Extract, and right click on the absinthe-win-2.0.exe icon and select Run as Administrator. This first file is a self extracting zip file. Once you do this, a new folder will be created on your desktop called absinthe-win-2.0 with the necessary files.
Step 3: Open the absinthe-win-2.0 and right click on the absinthe.exe icon and select Run as Administrator.
Step 4: Connect your eligible iOS 5.1.1 device, and verify that Absinthe recognizes the correct name of your device.
Step 5: Click the jailbreak button on Absinthe, and let it run. You should see a progress bar.
Step 6: Eventually your device will appear as if it’s performing a restore, this is normal.
Step 7: Once the device has completed the “restoreâ€, you should notice the Cydia icon on your Home screen.
Step 8: Once Absinthe reports that the process is complete, you can close Absinthe and disconnect your device.
Step 9: Open Cydia and let it configure itself for the first time.Your iOS 5.1.1 device is now jailbroken untethered.
Updates: