If you have ever experienced a problem with your device, you may have been advised to do a "reset." However, there are two distinct types of reset for many electronic devices, namely a hard reset and a factory reset. Understanding the differences between the two can help you determine which one is better in a given situation.
A hard reset is a process of reverting a device back to the state it was in when shipped from the factory. That is to say that all settings, applications, and data added by the user are removed. This process does not involve the internal memory of the device (if applicable) but rather forces the device to perform as if it had just been turned on for the first time.
A factory reset, on the other hand, reverts a device back to the state it was in when it was originally purchased. This means that all user data, settings, applications, and any other changes made since its purchase will be erased. Additionally, the internal storage of the device will also be reformatted. This is why doing a factory reset should be a last resort when troubleshooting an issue as it eliminates all data from the device.