09-29-2018 07:15 AM - edited 09-29-2018 07:16 AM
If you need W10 installation media, you can make your own by using the Media creation tool at the link below, using another Windows PC.
You can either make a USB installation flash drive (you will need an 8 GB flash drive for this), or save an ISO file which you can burn to a DVD.
10-01-2018 06:49 AM
Use another Windows PC to make the OS CD from the media creation tool.
Otherwise your only option is to contact HP in the country you live in at the link below and see if you can purchase a recovery kit.