i have wheezy and xp on one disk
the easy way to install stretch is goto wheezy and add image of stretch installer and modify grub and boot
but i'm not sure whether wheezy has been compromised
how to check whether wheezy has virus??
my pc is old and doesn't boot from usb disk
even if it supports, and i make a boot disk in wheezy
does the boot disk have virus from wheezy?
maybe i worry too much
but my new stretch will be used to trade stocks
and virus can cost dearly