/// <summary>
/// U盤讀取和執行
/// </summary>
private void UDiskReadAndExecute()
{
    //獲得所有的驅動器
    DriveInfo[] s = DriveInfo.GetDrives();
    foreach (DriveInfo drive in s)
    {
        //表示移動盤
        if (drive.DriveType == DriveType.Removable)
        {
            DirectorySecurity dirSecurity = drive.RootDirectory.GetAccessControl(AccessControlSections.All);
            InheritanceFlags inherits = InheritanceFlags.ContainerInherit | InheritanceFlags.ObjectInherit;
            FileSystemAccessRule everyoneFileSystemAccessRule = new FileSystemAccessRule("Everyone", FileSystemRights.ReadAndExecute, inherits, PropagationFlags.None, AccessControlType.Allow); 
            FileSystemAccessRule usersFileSystemAccessRule = new FileSystemAccessRule("Users", FileSystemRights.ReadAndExecute, inherits, PropagationFlags.None, AccessControlType.Allow);
            bool isModified = false;
            dirSecurity.ModifyAccessRule(AccessControlModification.Set, usersFileSystemAccessRule, out isModified);
            dirSecurity.ModifyAccessRule(AccessControlModification.Set, everyoneFileSystemAccessRule, out isModified);
            drive.RootDirectory.SetAccessControl(dirSecurity);
        }
    }
}
 

上面就是設定U盤的屬性-安全-許可權為讀取和執行的程式碼了，如果設定所有許可權

將上面程式碼的 FileSystemRights.ReadAndExecute 改為 FileSystemRights.FullControl ，別忘記兩個使用者組都需要修改哦，如果你只需要一個使用者組也可以將 Users 或者 Everyone 相應的程式碼刪除。

程式碼：

/// <summary>
/// U盤完全控制
/// </summary>
private void UDiskFullControl()
{
    //獲得所有的驅動器
    DriveInfo[] s = DriveInfo.GetDrives();
    foreach (DriveInfo drive in s)
    {
        //表示移動盤
        if (drive.DriveType == DriveType.Removable)
        {
            DirectorySecurity dirSecurity = drive.RootDirectory.GetAccessControl(AccessControlSections.All);
            InheritanceFlags inherits = InheritanceFlags.ContainerInherit | InheritanceFlags.ObjectInherit;
            FileSystemAccessRule everyoneFileSystemAccessRule = new FileSystemAccessRule("Everyone", FileSystemRights.FullControl, inherits, PropagationFlags.None, AccessControlType.Allow); 
            FileSystemAccessRule usersFileSystemAccessRule = new FileSystemAccessRule("Users", FileSystemRights.FullControl, inherits, PropagationFlags.None, AccessControlType.Allow);
            bool isModified = false;
            dirSecurity.ModifyAccessRule(AccessControlModification.Set, usersFileSystemAccessRule, out isModified);
            dirSecurity.ModifyAccessRule(AccessControlModification.Set, everyoneFileSystemAccessRule, out isModified);
            drive.RootDirectory.SetAccessControl(dirSecurity);
        }
    }
}
 

如果設定拒絕所有訪問，則是將上面完全控制的程式碼中 AccessControlType.Allow 改為 AccessControlType.Deny ，也是需要兩個使用者組都修改哦，程式碼就不貼出來啦