just installed windows 8.1 on a ssd which was going well but hit a major brick wall

I cant install the wireless card / bluetooh drivers as I keep getting this error

https://www.google.co.uk/?gws_rd=ssl#q=activate bluetooth using wireless switch

tried a few of the suggestions brought up by google but none work, im really stuck. been stuck for hours now
can anyone help?
ive got a dell inspiron 5748
downloaded the latest drivers plus the older version but get the same issue. ive got the 17", ive downloaded the 15" version which seems to be newer but same issue.

totally lost and not sure what to do