"Unknown users" listed in properties and safety of a folder

PROBLEM: "unknown users" are listed in the properties/security of a folder.

I have Windows 7, 64-bit.

The properties/security box from my "C:\Users\[my name]" folder lists two known as users
"Account unknown (S-1-5-21-879640176-2077098734-2292519611-1001).
and "Home Users", more legitimate users 'SYSTEM', 'Administrators', and
"[my name]."

After deleting the computer Acct limited, the 2 users are still listed.

'S-1-5-21-879640176-2077098734-2292519611-1001' is not found by the Yahoo Search
Engine. Windows specific engine search folder 'C:' and 'Users' research essentially
indefinitely. For the folder named after me is nothing.

Especially regarding'S-... ', this is the result of malware? Would the deletion or the other or both of these
Users of harmful effects?

Thank you.

These inscriptions refer to the accounts that you have deleted from your computer. They are of no consequence, and they cause no harm.

Tags: Windows

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