users := Object()

ArrayCount := 0
Loop, C:\Users\*, 2, 0 ;look at all the folders in C:\Users and return the variables
{
    ;test if the folder is one of the default user accounts. If it is, skip it.
    if (A_LoopFileName = "Administrator" or A_LoopFileName = "Public" or A_LoopFileName = "All Users" or A_LoopFileName = "Default" or A_LoopFileName = "Default User")
        continue
    else
    {
        ArrayCount += 1
        users[ArrayCount] := A_LoopFileName
    }
}