disable auto tuning :
netsh interface tcp set global autotuninglevel=disabled
Quick Access to Control Panel items
Windows-Key+R or Start -> run :
ncpa.cpl - Networkcenter
appwiz.cpl - Add/Remove Application
devmgmt.msc -Hardware Management
compmgmt.msc - Computer Management
eventvwr.msc -Eventviewer
fsmgmt.msc [...]