It seems with newest update MS is willingly sabotaging Win7-users comfortable life.
its german but clear: activation is interrupted after newest update.
https://winfuture.de/news,106882.html
https://winfuture.de/news,106909.html
https://winfuture.de/news,107008.html

Maybe best is say GOODBYE to MS and PCs altogether.
Life would be much easier!