Follow opera's advice in post #2. Download the iso of Hirens and burn to a DVD by right clicking and select Burn Disk Image on any Windows 7 or later computer. Boot Hirens. Attach a USB flash drive or USB external drive and copy your folders from your computer. Do not move them.
If you are not tech savvy then I don't recommend you attempt to pull the hard drive especially if this is a modern laptop.
You may need to disable SecureBoot in your UEFI/BIOS settings in order to boot Hirens. Was this an upgrade from Windows 7 or 8 to Windows 10? What is the make and model of the computer.
If you know somebody with computer experience you can have them remove the drive and connect it using a USB adapter similar to the one below.
If this is a laptop then you can use one of these.
It has 2 USB connections in case your USB ports do not provide enough power.
SATA is a type of connection for the HDD, your hard drive.
Edited by JohnC_21, 20 June 2018 - 08:31 PM.