However, you must specify that you want to save your personal data when it prompts you. Yes, Windows 10 preserves personal folders such as My Documents, My Videos, and My contacts when performing a factory reset on your Dell Inspiron 15 5566.
In this process, all the data of the device will be erased while data on the SD card as well as pre-installed applications will not be affected.Devices include smartphones and laptops.This method effectively erases all the data from the device which is often used to fix an issue.