I really do not understand the obsession to still be stuck with windows 7 because of false claims/beliefs about security, personal data sharing, performance, advertising, privacy settings etc. What is indisputable at this point with spectre and meltdown, is that older windows will suffer more and system call overhead in older windows have been demonstrated to take a bigger hit. I am no fan of Microsoft, but the windows 7 update process is a lot more hassle and far more time consumning than windows 10.