Forticlient on Win 8.1?

Hello, i would like to ask around, if anybody tried to run latest forticlient (VPN only installation) on Win 8.1 i have problem with login to company VPN - it stops at 98% i tried it on colleagues PC and i am able to login - this issue seems to be tied with win8.1 ive searched the internets for some kind of advice, there is a lot actually, from reinstalling client to uninstalling security updates. but none of them works - except uninstalling security updates - because the one mentioned in solution is for Win7 and this update is not present in 8.1 can anyone come up with other solution, or name of security update that needs to be removed? ty in advance,