still does not
guarantee he is clean. as he proffered earlier in this thread … somethin' to the effect of a certain ransom-file
(or backdoor) on one of his data-storage drives. so … let's say he accepts your suggestion … re-formats the boot-drive … thinks he is now safe with a clean install. next morning, he accesses one or more of his storage drives and …
BAM! it's off to the ransomware races yet again.
my advice …
- overwrite each of his internal/external storage drives with 1's / 0's … that may/mayn't suffice.
- if he really wants to insure he is clean … shred all cd/dvds he has created in the past 6-8 years. this includes any iot devices 'n flash-drives 'n camera-chips 'n cell-chips 'n video-cams … etc.
- next … anything he has uploaded to the cloud or dropbox or what-have-you. don't forget any email attachments.
personally, i think option #1 would satisfy most of us
(myself included) … peace out.