I've been insider tester for Windows 10 for about one and a half year now. As a recent update confused my installation in thinking that it was no longer activated and the TwinUI is no longer working properly, I plan to format the SSD and reinstall Windows 10. I hold a Windows 7 and a Windows 8 licence
What steps do I have to take to install windows 10 properly, without losing the insider license.
JKi