Hi Michal
I am Dave, I will help you with this.
Did you right click the Autoruns exe and select 'Run as Administrator'?
Autoruns is basically just a registry and task schedular editor
Click your Start Button, then just type regedit and press Enter
In the left pane of the Registry Editor select 'Computer' at the top of the tree
Click Edit - Find and search for StartupCheckLibrary
Right click and delete any entry found
Then press F3 to continue the search and continue deleting any entries found until you reach the end of the registry.