Regarding the topic in the title - marked as closed and I seem unable to respond.
I run start 8 on win 8.1 and start 10 on 5 win 10 machines. not one single problem at all - ever . Whatever the issue was, I am sure it was not specific to start 8 or 10. Marking issues such as that as 'solved' - and from what I can see then disabled from replies, will lead others to believe this is their issue, it is not.
Start 8 and start 10 are used by a HUGE proportion of users. It is a very well written and mature commercial program. I suggest you test with your own systems also - topics marked as 'solved' unless you have 100% identified the issue is a bad idea, and again, will give false and inaccurate information to others.
Please test the programs - start 8 and and start 10 at your end to confirm.
Hope this helps.