I had the Thunderbird Lightning Calendar installed on my laptop. My hard drive was damaged and I needed to replace it. All the data (files, documents, pictures, etc.) have been transferred, but I no longer have the calendar...and no longer have all the year's worth of appointments and commitments that I'd entered onto it. All my data was supposedly saved to "The Cloud" by Carbonite, but I must first download the Thunderbird/Lightning calendar again presumably in order for those dates and times to (hopefully) show up again or be re-imported from the Carbonite cloud. I don't know how to do this. Also, once I download the program, how do I open it? Is there an app I need to use that wouldn't already be on my computer now that I have a new hard drive? I just got the Microsoft Windows 10 operating system, by the way. Thanks for your help!!