Subtitles problem!! subs wont display!! tried everything.

Hi! i'm facing really annoying problem here what has continued for very long time now. When i'm watching movies i press "search for matching subtitles" and i get sub list what has my language in it (Finnish). i download subs and select it from the list. but no it wont display them. i tried to drop it manually on the player but no. nothing works, i have literally tried everything. i had to download bsplayer, subs only worked with that piece of shit. what could be the problem here. about year ago everything was fine. i'm running windows 10 technical preview atm and this problem started when i was on win7. also codec's are updated. i'm paying for nothing atm. i have contacted support 2 times now and your support team didn't know anything they just said "did you select it from the list" replied to that never got an answer.