While Windows 10's Edge browser still lacks some features, it does have a handy reading mode that reduces a web page to a single column of text, making it much easier to read.
If you notice that you are not able to successfully activate Windows 10, Microsoft has introduced a new activation troubleshooting feature in the Anniversary Update. In Settings, you will find this, then click Update & Security, go to Activation, and choose Troubleshoot (if the OS has been enabled, you won't see this option).