Open Microsoft365.com/setup URL, Sign in, and enter the product key to download and install Microsoft 365 or Office on your computer. microsoft365.com/setup | www.microsoft365 / setup , or buy a product key card from a retailer and start a subscription from microsoft365.com/setup ,  If you've entered the McAfee activation key correctly at mcafe.com/activate and followed all instructions correctly, the key will be redeemed. Macfee.com/activate  | mcafee.com/activate , Create an account and enter Skype Login credentials to start or host a video call. Skype Login s