Deleting Unknown Accounts in Win8 System

In the win8 system, an unknown account appears, which makes it very annoying and limited when performing computer operations. This unknown account is, (s-1-5-21-2000478354-1390067357-725345543-1003), then how to delete this account? Let's go check it out now!
The specific situation is as follows :

Solutions:
Starting a variety of online searches. . Said to be a problem left over from the previous system account, manage him, can delete it on the line
tried the method one: first select a partition, then select the right click — & mdash; security & mdash; & mdash; select the advanced button & mdash; & mdash; Select the Owner tab —— select Edit —— then select the administrators group (administrators) and hit the checkbox below and click Apply. After the above steps, the owner of all files becomes an administrator.
Step 2: Select the partition just now, then select the right click ——security—— select the advanced button —— select the permissions tab, then click the change permission button below to hit the bottom hook , click on the application!
But there is no owner option in win8!! What makes me feel good!

Only I find a way, I didn’t expect that unknown account disappeared:
Two methods: right click ——property——security——edit ——select account —— remove the control, modify, read and execute... checkmark —&mdash Application —— OK, that account should disappear, and other functions are normal!!!!

The above two methods can solve the deletion of this unknown account. However, the first method that is available in the win8 system is not available. Therefore, Xiaobian suggested that netizens can use the second method to delete accounts!