Ok, so over the last couple of days folders have been appearing in my C:, they all have long nonsensical names, and it WON'T LET ME OPEN THEM to see what's inside, should I be worried about this? The folders are named:
3a42ca095c6539eb3f8f86
8746226cc783ef90293d2f7af67df408
f9aa5e6f670ceca4d0dd
3a42ca095c6539eb3f8f86
8746226cc783ef90293d2f7af67df408
f9aa5e6f670ceca4d0dd