Windows 7 Line in volume problem

[zibiam]

Make a long storey short i installed a bluettoth and conected my handfree device. i then get line in divce for it where sound comes in, ok the issue here is that when i went into "levles" i was at 0, i then wanted too drag it abit higher, but then i went stright too -14.0DB, wich is worse then 0, almost have too scream when im useing it too get any effeckt. Any1 know a way too get this fixed. Ive dragger the lvl too max but still on -14.0DB. Try reinstall aswell, but came back whit same settings. Im unable too get into settings for bluetooh as windows explorer crashes when i try too open that part of the program, but yea all my devices are working ok.