- The backup company provides a program which you install.
- You tell the program what to backup and lets your computer run until all of the data has been uploaded.
- From now on the program will only upload the data that changed, which is usually very little.
One thing to look for, is if the company has a separate restore price. When you have lost your data, it is not fun to find out that you must pay a horrible rate to get your data back. Restore should be part of the subscription.