How to find serial number of computer if I lost it

Hi @Arwen R Hamilton

Thank you for posting your question in the Microsoft Q&A forum.  

Regarding your issue, I am sorry to hear about your lost Surface. Losing a device is incredibly stressful, but there are several ways to retrieve your serial number without having the device in front of you. 

Here are some steps you can try: 

1. Check the Device Service & Repair page 

• Go to: https://account.microsoft.com/devices/select-device-for-repair
• Sign in with the Microsoft account you used on your Surface. 
• Your registered devices will appear, and the serial number will be listed there. 

2. Look at the original packaging 

• If you still have the box your Surface came in, the serial number is printed on the barcode label. 

For more details, please refer to: Find the serial number for your Surface device and accessories or Microsoft accessories

Hope this helps with your situation. 

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If you have lost your computer, retrieving the serial number can be challenging. However, here are a few methods you might consider:

1. Check Original Packaging or Documentation: If you still have the original box or any documentation that came with the computer, the serial number is often printed on the packaging or in the user manual.
2. Microsoft Account: If you registered your device with a Microsoft account, you might be able to find the serial number by logging into your account on the Microsoft website. Check under your devices section.
3. Purchase Receipt: If you have the receipt from when you purchased the computer, the serial number may be listed there.
4. Contact Support: You can contact Microsoft Support for assistance. They may be able to help you retrieve the serial number based on other information related to your purchase.

Unfortunately, if none of these options are available, it may be difficult to retrieve the serial number without physical access to the device.

References:

• Streamline asset management with Serial Number QR codes on Surface
• Surface Laptop 7th Edition for Business: Device Information and Service Parts
• Surface Laptop Go 2: Device Information and Service Parts
• Surface Laptop SE Device Information and Service Parts
• WMI Tasks: Computer Hardware