Solution to activating the Windows after the server mainboard is replaced


To activate Windows, do as follows:
1. Call 800-830-1832 or 400-830-1832, and press 1 and then 5. Provide the key of your Windows version and the code generated when the activation failed.
2. Call the Microsoft technical support and tell the technical support that you need to reactivate the OS after replacing the server mainboard.
3. Enter the code provided by the Microsoft technical support to activate the OS.

Other related questions:
Whether replacing server mainboards affects services
Power off the server before you replace the mainboard. Mainboard replacement does not affect services.

How to replace a Windows DHCP server with a Linux DHCP server
If the operating system of an S series switch (except an S1700 switch) that functions as a DHCP server is switched from Windows to Linux, its IP address remains unchanged and no other configuration is required.

Activating Windows OS
Activate the Windows using the key provided by Microsoft. Method 1: Activate Windows on the Internet. Method 2: Activate Windows by call. For details, contact the OS vendor.

Problem and solution when an intranet PC cannot access the server after active/standby server switchover
This case applies only to V100R001. A firewall is deployed between an intranet PC and two servers. The two servers work in active/standby mode. A floating IP address residing on the same network segment as the firewall is used to correspond to two physical MAC addresses to implement the active/standby mechanism. In this scenario, ARP spoofing attack defense cannot be configured on the firewall. Otherwise, services will be interrupted after active/standby switchover. You need to run the undo firewall defend arp-spoofing enable command to disable ARP spoofing attack defense. For details, see when the server switch over the vitual IP to the slave one, it can’t ping.

Whether Windows Server 2012 is supported by infrastructure VMs in the FusionCloud desktop solution
Windows Server 2012 is supported by infrastructure VMs in the FusionCloud desktop solution.

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