Alpha-lactalbumin is a calcium-binding protein that may have a role in calcium transport. Alpha-lactalbumin is rich in the amino acid cysteine, which is a building block of glutathione, a powerful antioxidant in the body that plays an important role in immunity. Instantized Alpha-lactalbumin.
If Windows 8.1 came preinstalled on your computer, your Windows 8.1 product key should be on a sticker on your computer or with your documentation. The Windows 8.1 product key is a series of 25 letters and numbers and should look like this: xxxxx-xxxxx-xxxxx-xxxxx-xxxxx.
Here are the steps that lets you download the Windows 8.1 ISO using a legitimate retail Windows 8 product key: 1  Download both the Windows 8 and Windows 8.1 setup installers from here. 2  Once downloaded launch the Windows 8 installer and enter your product key when prompted to do so.ere are the steps that lets you download the Windows 8.1 ISO using a legitimate retail Windows 8 product key: 1  Download both the Windows 8 and Windows 8.1 setup installers from here. 2  Once downloaded launch the Windows 8 installer and enter your product key when prompted to do so.