Co třeba stáhnout manuál k programu a přečíst si ho?

To uninstall NOD32, go to ‘Start’ in the lower left hand corner of your
computer screen and select ‘Programs’ or ‘All Programs’ and then the
check that the ESET folder has been removed from C:\Program Files. If it
hasn’t, you can now delete this ESET folder manually by right-clicking your
mouse on the folder and selecting ‘Delete’.