Getting Windows Evaluation Software

Windows 10 (90-day)

In a Web browser, go here:

https://www.microsoft.com/en-us/evalcenter/evaluate-windows-10-enterprise

Click "Register to continue".

Fill in name, email address, etc., and click Continue.

Click "ISO - Enterprise" and click Continue.

Select 32-bit or 64-bit version and language and download it.

No product key is needed. It's a 4 GB download.

Windows Server 2016 (180 days)

In a Web browser, go here:

https://www.microsoft.com/en-us/evalcenter/evaluate-windows-server-2016

Click "Register to continue".

Fill in name, email address, etc., as shown below, and click Continue.

Click ISO. Click Continue.

Select English.

Apparently no product key is needed. It's a 7 GB download.