Windows 8.1 was released in 2013.

it is a kind of major update to previously released windows 8.

below are the original ISO images of

Windows 8.1

which can be downloaded as high speed with resume support.

You can install after burning it on DVD, or create a bootable USB by following

This article
note: if your laptop/computer comes with a product key for windows 8.1, use it to activate windows.

otherwise, use any activater such as MS toolkit, re-loader, KMS pico etc. You can easily find them in our software library, just input your query in the search field. however you may need to enter the following serial number to start the installation.

please copy it from here now, and save at some safe location so you can access it during installation.

serial:
XKY4K-2NRWR-8F6P2-448RF-CRYQH