Back up your data on the storage drive. See Good maintenance practices.
Remove any media from the drives and turn off all connected devices and the computer. Then, disconnect all power cords from electrical outlets and disconnect all cables that are connected to the computer.
If you saved the original shipping cartons and packing materials, use them to pack the units. If you are using different cartons, cushion the units to avoid damage.
When you move your computer to another country or region, you must take local electrical standards into consideration. If the local electrical outlet style is different from the type you are using, use either an electrical plug adapter or a new power cord. To purchase such items, contact the Lenovo Customer Support Center. For a list of Lenovo Support phone numbers, go to https://pcsupport.lenovo.com/supportphonelist. If you cannot find the support telephone number for your country or region, contact your Lenovo reseller.