New
#1
Account Unknown has full Security permissions on my own User - huh?
Account Unknown(S-1-5-21-1345748419-2493160549-2943627078-1000)
has full permissions in the "Advanced Security Settings" for my own user account on my Win 10 Pro 64-bit PC.
What is it? Is this normal?
If I go to C:\Users\ , it lists four users:
[Myself]
Default
Default.migrated
Public.
If I right-click on [Myself] and hit Properties, then go to the security tab, it lists four "Group or user names:" with certain Permissions:
SYSTEM with full permissions - all items checked
Account Unknown(S-1-5-21-1345748419-2493160549-2943627078-1000) with the same full permissions - all items checked
[Myself] with the same full permissions - all items checked
Administrators with the same full permissions - all items checked
What is the Account Unknown(S-1-5-21-1345748419-2493160549-2943627078-1000), and how did it get there?
Two clues:
1) My PC is dual-booting Win 7 Pro 64-bit and this Win 10 Pro 64-bit. I'm in the Win 10
2) 15 minutes ago (and before checking this), I turned on Public file sharing so other PCs on my home network could see any documents I put in those Public folders or maybe vice versa. I do NOT have "Homegroup" turned on.
But wha' happening here?