ml, stock accessories from the mfg are bilt not too interfere with normal operation. If that is a stock and not an aftermarket windscreen and it is contacting the tank, then you have a mounting and fitment problem most likely incurred when the bike was dumped over.
go to a dealer and look at another model unit and see what diff you can identify between a proper mounted and fitted windscreen and yors. you may be able to see the area or item that has been reengineered using ground forces. which may give you ideas how to reengineer (beat, bend, replace) it back to mfg specs and not interfere with normal steering.
if it is an aftermarket item, usually they are bilt to not interfere. sometimes the hoser who installs stuff puts things together wrong and there are issues. most anybody can fix these if they study the problem. and tackle it.
not another boring list of mods;
14 guzzi v14, 14 Injun chieftain v18, 13 guzzi v7, 12 hardley 48
07 kaw v2k, 07 guzzi v11, 07 yam v17, 07 96ci 'lectraglide
06 88ci superglide, 05 hardley 883, 05 yam v17
04 zooki sv1k, 03 guzzi v11, 02 kaw v15
01 Honda 750, 00 hardley 883, 84 Honda v7 supermagna, 99 hardley 883
92 zooki v8 sport, 88 zooki 650 thumper, 84 Honda 500 thumper
80 Honda 360t, 78 Honda cb500f, 75 Honda cb750f
73 Honda cb500f, 73 Yam TX750 blow up bike, 72 Honda cb350t