Problems with BSODs have stopped completely now thanks
But still major problems with lag spikes with svchost- I managed to track down services like
IP Helper
Network Location Awareness
basically all crucial network related services that can't be disabled - therefore I thought it has gotta be a driver, so I tried using modded drivers:
http://forums.mydigitallife.info/threads/17385-MODDED-ATHEROS-DRIVERS-TO-ENABLE-ALL-KNOWN-SETTINGS-8-0-279-x86-amp-x64-IMPROVES-PERFOR
but sadly no difference 
Its a TP-LINK branded PCI-E card with an atheros chip.
Might move to a usb adapter, any suggestions on how to fix the lag spikes?
Or will I have to try changing hardware?
