This topic describes how to connect to a Windows Elastic Compute Service (ECS) instance from an Android device. Microsoft Remote Desktop is used in this topic.


Before you connect to a Windows instance, make sure that the following requirements are met:
  • The instance is in the Running state.
  • The instance has a public IP address and is accessible from the Internet.
  • A logon password is set for the instance. If you forget the password, reset the password. For more information, see Reset the logon password of an instance.
  • Microsoft Remote Desktop is installed on the instance. You can download Microsoft Remote Desktop from the official Microsoft website.
  • The rule described in the following table is added to the security group of the instance based on the network type of the instance. For information about how to add a rule to a security group, see Add security group rules.
    Network type NIC type Direction Action Protocol type Port range Authorization type Authorization object Priority
    Virtual Private Cloud (VPC) N/A Inbound Allow RDP (3389) 3389/3389 IPv4 CIDR block 1
    Classic network Public
  • If you log on to the Windows instance as a non-administrator user, the user must belong to the Remote Desktop Users group.


  1. Open the Microsoft Remote Desktop app.
    In this example, RD Client is used.
  2. In the upper-right corner of the Remote Desktop page, tap the + icon.
    Microsoft Remote Desktop
  3. Tap Desktop.
  4. On the Add desktop page, enter the hostname or public IP address of the Windows instance to which you want to connect in the PC name field and tap SAVE.
    Edit Desktop
  5. On the Remote Desktop page, tap the Windows instance.
    Remote Desktop 2
  6. If the Certificate can't be verified. Do you want to connect anyway? message appears, confirm that certificate information and connection information are correct and tap CONNECT.
  7. On the Logon page, enter your username such as administrator and your password and tap CONNECT to connect to the Windows instance.


You are connected to the Windows instance. windows